Chevy Block Casting Numbers

Chevy Block Casting Numbers

Use these casting numbers to identify the block you have.

Small Block Casting numbers

Casting Number	Years	CID	Comments
330817	70-80	400	Car & Truck 2 & 4-bolt 3-freeze plugs
355909	75-79	262/305	car & Truck 2-bolt
360851	75-76	262	2-bolt
361979	76-79	305	car & Truck 2-bolt
366245	78-82	350	Bowtie High tin 4-bolt
366286	82	350	Bowtie aluminum 4-bolt siamesed
366287	82	350	Bowtie aluminum 4-bolt siamesed
366299	82	350	Bowtie aluminum 4-bolt
389257	67	302	2-bolt
391436	68-73	307	2-bolt
393288	65-67	283	2-bolt
460703	78	350	4-bolt
460776	76-79	305	Car & Truck 2-bolt
460777	76-79	305	Car & Truck 2-bolt
460778	76-79	305	2-bolt
471511	79-82	267	Car & Truck 2-bolt
3556519	58-61	283	2-bolt
3703524	55	265	car & Corvette no oil filter 2-Bolt
3720991	55-56	265	Car & Truck 2-bolt
3731548	57	283	Car & Truck 2-bolt No side mount
3737737	57-62	283	2-bolt
3737739	57-62	283	2-bolt
3756519	58-62	283	2-bolt
3782870	62-67	327	car & Truck 2-bolt
3789817	62-67	327	2-bolt
3789935	61-66	283	car & Truck 2-bolt
3790721	64-67	327	2-bolt Chevy II Nova Recessed filter
3791362	66-67	327	2-bolt Chevy II Nova Recessed filter
3791363	66-67	327	2-bolt Chevy II Nova Recessed filter
3792563	65	327	2-bolt
3792582	64-65	283	2-bolt
3794226	57-63	283	2-boltTruck
3794460	68-69	327	2-bolt
3814660	68-69	327	2-bolt
3830944	63	327	2-bolt
3834810	65-67	283	car & Truck 2-bolt
3834812	62-63	283	2-bolt
3837739	58-62	283	2-bolt
3849852	57-66	283	car & Truck 2-bolt
3849859	57-66	283	car & Truck 2-bolt
3849935	65-67	283	2-bolt
3858174	64-67	327	car & Truck 2-bolt
3858180	64-67	327	2-bolt
3858618	68-76	350	2 & 4-Bolt
3862194	65-67	283	2-bolt Chevy II Nova Recessed filter
3864812	62-67	283	car & Truck 2-bolt
3892657	64-67	302/327/350	car & Truck 2-bolt
3892659	68-69	327	2-bolt Large journal
3896944	67	283	2-bolt
3896948	66-67	283	2-bolt
3903352	67	327	2-bolt
3914635	68-73	307	car & Truck 2-bolt
3914636	68-73	307	car & Truck 2-bolt
3914638	68	327	2-bolt
3914653	68	307	2-bolt
3914660	68-69	327	car & Truck 2-bolt
3914678	68-79	302/327/350	car & Truck 2-bolt
3931174	68	307	2-bolt Truck
3932371	69-73	307	car & Truck 2-bolt
3932373	69-73	307	car & Truck 2-bolt
3932386	68-74	302-327-350	2 & 4-Bolt
3932388	68-79	350	car & Truck 4-Bolt
3932442	67	350	2-bolt Camaro
3933180	68-69	327	car & Truck Large journal 2-Bolt
3951509	70-80	400	car & Truck 2 & 4-Bolt 2-freeze plugs
3951511	70-80	400	car & Truck 2 & 4-Bolt 3-freeze plugs
3956618	68-79	302/327/350	2 & 4-Bolt
3956632	69-73	307	car & Truck 2-bolt
3959512	62-63	327	2-bolt
3970010	69-79	302/350	car & Truck 2 & 4-Bolt Most common
3970014	68-79	350	car & Truck 2 & 4-Bolt
3970020	69-73	307	car & Truck 2-bolt
3970024	69-73	307	car & Truck 2-bolt
3992386	68-69	327	car & Truck Large journal 2-Bolt
10036033		350	4-bolt Mexico cast Crate engine
10051182		350	Car and Truck 2 & 4-bolt 1 Piece Seal P***enger stick
10051184	86-up	350	Car & Truck 2 & 4-bolt P***enger stick 1-piece seal
10054727	86-up	350	Car & Truck 2-bolt P***enger stick 1-piece seal
10066036	86-up	350	Car & Truck 2 & 4-bolt P***enger stick 1-piece seal
10066038		350	2 & 4-Bolt Mexico cast Crate engine
10090511	90	350	4-bolt LT-5 ZR-1
10125327	93-up	350	Camaro/firebird 2 & 4-bolt LT-1 Reverse cooling Roller cam
10134996		400	4-bolt Bowtie Aluminum 400 Mains/Bore
10153558	91-92	350	4-bolt LT-5 ZR-1
10168588	94-96	265	2-bolt LT-1 Reverse cooling
10199001	93-95	350	4-bolt LT-5 ZR-1
10243878	96-up	305	2-bolt Vortec Roller
10243880	96-up	350	2 & 4-Bolt Vortec Roller
12550592	97-up	350	Crossbolted LS-1 Aluminum
12551364	98 & UP	365	Gen III 6.0L Iron Block. LQ-4 and LQ-9
12559378	97-up	350	Crossbolted LS-1 Aluminum
12559846	97-up	350	Crossbolted LS-1 Aluminum
12560621	97-up	350	Crossbolted LS-1 Aluminum
12560629	97-up	350	Crossbolted LS-1 Aluminum
12561168	97-up	350	Crossbolted LS-1 Aluminum
12561358	99 & UP	293/325	Gen III 4.8L and 5.3L Iron Block.
12562174	97-up	350	Crossbolted LS-1 Aluminum
12573581	98 & UP	365	Gen III 6.0L Iron Block. LQ-4 and LQ-9
12577184	98 & UP	365	Gen III 6.0L Iron Block. LQ-4 and LQ-9
14010201	80-85	305	car & Truck 2-bolt P***enger stick
14010202	80-85	305	car & Truck 2-bolt P***enger stick
14010203	80-85	305	car & Truck 2-bolt P***enger stick
14010205	80-82	267	car & Truck 2-bolt P***enger stick
14010207	80-85	350	car & Truck 2 & 4-Bolt P***enger stick
14010209	80-85	350	car & Truck 2 & 4-Bolt P***enger stick
14010280	80-82	267	car & Truck 2-bolt P***enger stick
14010287	80-82	350	2-bolt P***enger stick
14011064	80-85	350	4-bolt P***enger stick
14011148	87-89	350	2 & 4-Bolt Roller cam one piece seal
14016376	80-82	267	2-bolt P***enger stick
14016379	77-79	350	2 & 4-Bolt
14016379	77-79	267	2-bolt ***stick in pan
14016381	76-85	305	car & Truck 2-bolt P***enger stick After 79
14016382	80-85	305	2-bolt P***enger stick
14016383	80-85	305	2-bolt Truck
14079287	86-90	350	2-bolt P***enger stick one piece seal
14088526	87-89	350	2-bolt Roller cam P***enger stick 1-piece seal
14088548	86-88	350	2-bolt Truck P***enger stick 1-piece seal
14088551	86-88	305	Car & Truck 2-bolt P***enger stick 1-piece seal
14093627	87-88	305	Car & Truck 2-bolt P***enger stick 1-piece seal
14093638	87-95	350	Car & Truck 2 & 4-bolt P***enger stick 1-piece seal
14094766	86-up	305	2-bolt P***enger stick one piece seal
14101147	86-up	305	2-bolt P***enger stick one piece seal
14101148	86-up	350	2 & 4-Bolt P***enger stick 1-Piece seal Roller cam
14102058	86-88	305	Car & Truck 2-bolt P***enger stick 1-piece seal
14316379	68-88	350	Car & Truck 2-bolt P***enger stick 1-piece seal

Big Block Casting numbers

Casting Number	Years	CID	Comments
340220	72-76	427	Truck Tall deck
345014	74-86	454	Truck
346236	74-76	454	2-bolt
359070	74-90	454	Truck
361959	73-85	454	Car & Truck
364776	68-84	427	Truck Tall deck
364779	68-88	366	Truck Tall deck
399204	70-71	509	4-Bolt Aluminum Can-AM
399289	73-79	454	2-bolt
399293	77-78	366	Truck
473478	68-84	427	Truck Tall deck
3716362		396
3732755	59-61	348
3732811	58	348
3751872	58	348
3755011	59-61	348
3771705	59-61	348
3782012	58-61	348
3782870	68-76	427	Truck Tall deck
3788068	62	409
3795623	61	409
3798962	62-65	348	Truck
3815707	58-61	348
3824553	66-67	366	Truck
3830814	63	409
3839752	62-63	409
3839754	65	409
3844422	64	409
3855961	66-67	396	2-bolt
3855962	65-66	396	4-Bolt
3855977	65-67	366	Truck Tall deck
3857651		409	Marine
3857655	62-65	348	Truck
3857656	65	409
3857658		409	Marine
3860386	62-64	409
3860387	58	348
3869942	66-67	427	2 & 4-Bolt
3873858	66	396	4-Bolt
3902406	67	396	2 & 4-Bolt
3902466	65-67	396
3904351	67	427	2 & 4-Bolt
3904354	66-67	366	Truck Tall deck
3916319	68-85	366	Truck Tall deck
3916321	68	427	2 & 4-Bolt
3916323	68	396	2 & 4-Bolt
3918319	66-70	366	Truck
3925521	68-85	366	Truck Tall deck
3935439	68-69	427	2 & 4-Bolt
3935440	68-69	396	2 & 4-Bolt
3937724	68-85	366	Truck Tall deck
3937726	68-84	427	Truck Tall deck
3946052	69	427	ZL-I Aluminum 4-Bolt
3946053	97	427	ZL-I Aluminum 4-Bolt 2nd design
3955270	69	427	2 & 4-Bolt
3955272	69	396/402	2 & 4-Bolt
3955274	68-85	366	Truck Tall deck
3955276	68-84	427	Truck Tall deck
3963512	69-71	427/454	2 & 4-Bolt COPO
3963513	73-76	454
3965440	68-69	396
3965449	68-72	396
3969852	68-84	366	Truck
3969854	69-72	396/402/454	2 & 4-Bolt
3969858	68-84	427	Truck Tall deck
3995623	61	409
3999289	72-78	454	Car & Truck 2-Bolt
3999290	72	402	2-bolt
3999293	68-85	366	Truck Tall deck
3999294	68-84	427	Truck Tall deck
6272176	68-76	366	Truck
6272177	72	402	2-bolt
6272181	73-76	427	Truck
10051107		454	4-Bolt Bowtie IV Short deck
10068286	90-91	454	4-Bolt IV Short deck
10069284		427	Truck
10114182	91-95	454	4-Bolt Gen-5
10114183	91-95	366	Truck Gen-5
10114184	91-95	427	Truck Gen-5
10134366		454	4-Bolt Gen-5 Bowtie Tall deck
10185050		454	4-Bolt Gen-5 Bowtie Short deck
10237297	96-up	454	4-Bolt Vortec 7400 Gen-6
10237300	96-up	502	4-Bolt 4.466 bore Gen-6
12550313	91-95	454	4-Bolt Gen-5
12556110	01-up	496	4-Bolt Vortec 8100 Gen-7
14015445	75-90	454	Car & Truck
14015543	87-90	454	4-Bolt Gen-5
14044807		454	4-Bolt IV Bowtie Tall deck
14096859		502	4-Bolt Gen-5
24502504		454	4-Bolt Gen-5 Bowtie Short deck
24502572			4-Bolt DRCE-2 Olds "9.5"" deck"

Crankshaft Identification

Use these casting numbers to identify the crankshaft you have.

Small Block Casting numbers

Casting Number	CID	Years	Journals	Stroke	Comments
1130	307/327	68-73	2.45/2.10	3.25	Nodular Iron
1178	302		2.45/2.10	3	Forged
1181	305/350	68-76	2.45/2.10	3.48	Nodular Iron
1182	350		2.45/2.10	3.48	Forged
2680	327		2.30/2.00	3.25	Forged
2690	350		2.45/2.10	3.48	Forged
3279	302	68-69	2.45/2.10	3	Forged
4577	327	62-67	2.3/2.0	3.25	Nodular Iron
4672	307/327	68-73	2.45/2.10	3.25	Nodular Iron
310514	350	77-85	2.45/2.10	3.48	Nodular Iron
330550	350	73-75	2.45/2.10	3.48	Forged
354431	262	75-76	2.45/2.10	3.1	Nodular Iron
3727449	283	57-67	2.3/2.0	3	Forged
3729449	265	55-57	2.3/2.0	3	Forged
3734627	327	62-67	2.3/2.0	3	Forged
3735236	265/283	55-67	2.3/2.0	3	Forged
3735263	283	57-63	2.3/2.0	3	Forged
3782680	327	62-67	2.3/2.0	3.25	Forged
3814671	327		2.30/2.00	3.25	Forged
3815822	265/283	55-67	2.3/2.0	3	Forged
3835236	283	57-65	2.3/2.0	3	Forged
3836266	265/283	56-63	2.3/2.0	3	Forged
3849847	283	57-67	2.3/2.0	3	Forged
3876764	283	64-67	2.3/2.0	3	Nodular Iron
3876768	283	64-67	2.3/2.0	3	Nodular Iron
3884577	327		2.30/2.00	3.25	Forged
3892690	350	68-85	2.45/2.10	3.48	Forged
3911001	307/327	68-73	2.45/2.10	3.25	Nodular Iron
3911011	307/327	68-73	2.45/2.10	3.25	Nodular Iron
3914672	327		2.45/2.10	3.25	Forged
3923279	302		2.45/2.10	3	Forged
3932442	305/350	69-85	2.45/2.10	3.48	Nodular Iron
3941174	307/327	68-73	2.45/2.10	3.25	Nodular Iron
3941178	302	68-69	2.45/2.10	3	Forged
3941182	350	68-76	2.45/2.10	3.48	Forged
3941188	350		2.45/2.10	3.48	Forged
3949847	283	64-67	2.3/2.0	3	Nodular Iron
3951130	327		2.45/2.10	3.25	Forged
3951529	400	70-80	2.65/2.10	3.75	Nodular Iron
10106122	350	90-95	2.76/2.10	3.66	Forged LT-5 ZR-1
10168568	265		2.45/2.10	3	Cast One Piece Seal
12552216	346		2.558/2.10	3.62	Cast LS-1 One Piece Seal
14088526	305	1986	2.45/2.10	3.48	Nodular Iron One piece seal
14088532	350	86-88	2.45/2.10	3.48	Forged One piece seal
14088535	305/350	86 & UP	2.45/2.10	3.48	Nodular Iron One piece seal
14088552	350	86 & UP	2.45/2.10	3.48	Forged One piece seal

Big Block Crankshaft

Casting Number	CID	Years	Journals	Stroke	Comments
3520	454		2.75/2.20	4	Forged
3521	454	70-88	2.75/2.20	4	Forged LS-6
3524	454		2.75/2.20	4	Forged
6223	366/396/402/427	68-76	2.75/2.20	3.76	Forged
7115	366/396/402/427	65-76	2.75/2.20	3.76	Forged
7416	454	70-88	2.75/2.20	4	Forged
7463	454		2.75/2.20	4	Forged
336782	454		2.75/2.20	4	Cast
353039	454	70-88	2.75/2.20	4	Nodular Iron
353638	454		2.75/2.20	4
359730	454		2.75/2.20	4
3732692	348		2.75/2.20	4
3732692	348	1958	2.50/2.20	3.25	Forged
3733223	409	62-65	2.50/2.20	3.5	Forged
3733223	348		2.50/2.20	3.25	Forged
3733226	348		2.50/2.20	3.25	Forged
3733226	348	1958	2.50/2.20	3.25	Forged
3741640	348		2.50/2.20	3.25	Forged
3741640	348	59-61	2.50/2.20	3.25	Forged
3741642	348		2.50/2.20	3.25	Forged
3741642	348	59-61	2.50/2.20	3.25	Forged
3788072	409	1961	2.50/2.20	3.5	Forged
3788072	409		2.50/2.20	3.5	Forged
3795589	409	61-62	2.50/2.20	3.5	Forged
3795589	409		2.50/2.20	3.5	Forged
3804816	366/396/402/427	61-76	2.75/2.20	3.76	Nodular Iron
3815822	348	58-61	2.50/2.20	3.25	Forged
3815822	348		2.50/2.20	3.25	Forged
3824553	348	58-61	2.50/2.20	3.25	Forged
3824553	348		2.50/2.20	3.25	Forged
3829027	409		2.50/2.20	3.5	Forged
3829027	409	1963	2.50/2.20	3.5	Forged
3837466	409/427		2.50/2.20	3.65	Forged Z-11Special performance
3837466	409	1963	2.50/2.20	3.5	Forged Z-11
3838416	409	64-65	2.50/2.20	3.5	Forged
3838416	409		2.50/2.20	3.5	Forged
3856223	396/402	65-71	2.75/2.20	3.76	Nodular Iron
3863114	402		2.75/2.20	3.76
3863144	366/396/402	68-85	2.75/2.20	3.76	Forged
3874874	366/396/402/427	66-85	2.75/2.20	3.76	Forged
3879621	427		2.75/2.20	3.76	Forged
3882841	396		2.75/2.20	3.76	Forged
3882842	366/396/427		2.75/2.20	3.76	Forged
3882849	366/396/427		2.75/2.20	3.76	Forged
3887114	396		2.75/2.20	3.76	Forged Special performance
3904815	366/396/402/427	65-76	2.75/2.20	3.76	Nodular Iron
3962523	454		2.75/2.20	4	Forged
3963521	454		2.75/2.20	4	Forged Special performance
3963524	454	70-72	2.75/2.20	4	Forged
3965746	NA		NA	NA	Semi finished Forged crank
3965753	NA		NA	NA	Semi finished Forged
3967416	454	70-71	2.75/2.20	4	Forged
3967463	454	70-88	2.75/2.20	4	Forged
3975495	454		2.75/2.20	4
3975945	454		2.75/2.20	4
3993804	NA		NA	NA	Raw Forged crank
3993878	454		2.75/2.20	4	Forged
10051169	NA		NA	NA	Raw Forged
10114186	427		2.75/2.20	3.76	Forged
10114187	396		2.75/2.20	3.76	Cast
10114188	454		2.75/2.20	4	Cast One Piece Seal
14097044	454/502		2.75/2.20	4	Forged One Piece Seal

Cylinder Head ID

Use these casting numbers to identify the heads you have.

Small Block Casting numbers

Casting Number	CID	Years	Valves	Comments
10065202	350	82-86	1.94/1.50	76cc
10065203	350	82-86	1.94/1.50	76cc
10065204	350	82-86	1.94/1.50	76cc
10065205	305	82-86	1.84/1.50	58cc
10065206	350	82-86	1.94/1.50	76cc
10065207	305	82-86	1.84/1.50	58cc
10088113	350	86-92	1.94/1.50	58cc Corvette Aluminum
10120928	350	87-94	1.94/1.50	76cc
10125320	350	94-96	2.00/1.55	Gen II LT1 cast iron version,
10128374	350	92-97	2.00/1.55	Gen II LT1 53 CC angle plug aluminum
10134363				Bowtie High Port 60 CC 210 ~ 258 CC
10159550	350	87-94	1.94/1.50	76cc
10159551	305	87-94	1.84/1.50	58cc
10159552	350	87-94	1.94/1.50	76cc
10159553	305	87-94	1.84/1.50	58cc
10185040				Splayed vavle head 45 CC angle plug
10205245	350	93	2.00/1.55	Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10207643	350	94-97	2.00/1.55	Gen II LT1 angle plug aluminum reverse flow cooling 175/68cc ports
10208890	265	94-96	2.00/1.55	Gen II L99 4.3 Liter V-8, cast iron, reverse flow
10215339	346	97	2.00/1.55	Gen III LS1 aluminum 68cc
10239906	305/350	96-up	1.94/1.50	68cc Vortec
12367713			2.00/1.55	GM Fast burn 62 CC 210 CC intake runner angle plug Vortec
12480005	346	0	2.125/1.625	Gen III LS1 "GTZ" aluminum 38cc angle plug
12480011				SB2.2 head 48 ~ 54 CC angle plug 284 CC intake runner Bare heads.
12480034			2.02/1.60	Bowtie Phase III 64cc Angle plug 184 cc intake runner
12506450	350	87-94	1.94/1.50	76cc
12509859	305	87-94	1.84/1.50	58cc
12516852	350	87-94	1.94/1.50	76cc
12551561	350	96	2.00/1.55	Gen II LT1 angle plug aluminum reverse flow cooling
12552520	305	97-99	1.84/1.5	Vortec Truck L-35
12554290	350	94-96	2.00/1.55	Gen II LT1 cast iron version
12555690	350	96	2.00/1.55	Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12555690	350	96	2.00/1.55	Gen II LT-4 55 CC 195 CC intake runner Angle Plug
12556743	325	99 & UP	2.00/1.55	Gen III 5.3L aluminum truck and van
12558059	305	97	1.84/1.5	L-35 Vortec truck
12558062	350	98	1.94/1.5	L-31 Vortec truck 64cc chambers 170cc intake port
12558062	305/350	96-up	1.94/1.50	68cc Vortec
12558806	346	97-98	2.00/1.55	Gen III LS1 aluminum 68cc
12559853	346	99 & UP	2.00/1.55	Gen III LS1 aluminum 68cc
12559895	325	00 & UP	2.00/1.55	Gen III 5.3L aluminum
12564241	346	00 & UP	2.00/1.55	Gen III LS1 aluminum 68cc
12564243	346	2	2.00/1.55	Gen III LS6 aluminum 68cc
12564243	346		2.00/1.55	Gen III LS-6 vette head 65 CC
14008856	267	79-81	1.71/1.50
14010201	305	82-85	1.84/1.50	58cc
14011034	350	80-up	2.02/1.60	64cc Bowtie
14011049	350	82-up	2.02/1.60	64cc Bowtie Aluminum
14014415	267/305	80-85	1.71/1.50	64cc Crack prone
14014416	267/305/350	80-86	1.84/1.50	64cc Crack prone
14019821	350	80-86	1.84/1.50	76cc
14019924	267	79-81	1.71/1.50
14019926	305	80-86	1.84/1.50
14020516	305/350	80-86	1.84/1.50
14020517	350	80-86	1.84/1.50	76cc
14020555	305	81
14020556	350	81
14022206	350	80	1.94/1.50	76cc
14022301	305	80-86	1.84/1.50	58cc
14022601	267/305	79-86	1.72/1.50 1.84/1.50	58cc
14022801	305	80-86	1.72/1.50	58cc
14034806	267	78-82	1.72/1.50
14034807	305	78-82	1.72/1.50
14034808	350	80-86	1.84/1.50	76cc
14034810	350	80-86
14034811	350	80-86
14039121	305	81-86
14039122	305	81-86
14071114	350	80-86
14075381	350	80-86
14079261	350	82-85
14085844	350	80-86
14089119	350	80-86
14096217	350	90-up	1.94/1.50	64cc Crate heads
14101081	305	87-94	1.84/1.50	58cc
14101083	350	88-94	1.94/1.50	64 cc
14102187	305	87-95	1.84/1.50	58cc
14102191	305/350	87-95	1.84/1.50
14102193	305/350	87-95	1.84/1.50
24502559		96-97		Bowtie SB2 1st design"mirror ports" aluminum
25534351C			2.00/1.55	Vortec Bowtie 65 CC 175 cc intake runner
25534371C			2.00/1.55	Vortec Bowtie 65 CC 206 cc intake runner
3238882	350	68-69	1.94/1.50	76cc
3297185	307/327/350	57-67	1.72/1.50
330545	350/400	71-75	2.02/1.60	76cc
330862	400	71-73	1.94/1.50
333881	350	71-76	2.02/1.60	76cc
333882	350/400	70-80	1.94/1.50	76cc
340292	350	73-80	2.02/1.60	64cc Angle plugs turbo' head No heat riser
354434	262/305	75-80	1.72/1.50	60cc
358741	262/305	71--79	1.72/1.50
359944	350	71-79	1.94/1.50	76cc
3636839	265	55	1.72/1.50
3703523	265	55	1.72/1.50	195HP
3713358	265	55-56	1.72/1.50
3713569	265	55-56	1.72/1.50
3725306	265	56	1.72/1.50	210HP Corvette
3731262	265	56	1.72/1.50	Dual Quad Corvette
3731539	283	57-66	1.72/1.50	283HP Corvette
3731544	265/283	55-61	1.72/1.50	Dual Quad Corvette
3731554	265/283	55-63	1.72/1.50
3731556	283	57	1.72/1.50
3731762	265	56	1.72/1.50	Dual Quad Corvette
3737775	283/327	62-67	1.72/1.50
3740997	283	57	1.72/1.50	Dual Quad FI & 4-brl 220-270HP
3743056	283	58	1.72/1.50
3743096	327	62-67	1.72/1.50
3747363	265	57-62	1.72/1.50
3748056	327	62-67	1.72/1.50
3748720	283	57-58	1.72/1.50	Dual Quad FI & 4-brl Corvette
3748770	283	55-62	1.72/1.50	Dual Quad FI & 4-brl Corvette
3748772	283	57-62	1.72/1.50	Dual Quad FI & 4-brl Corvette
3755537	283	57-62	1.72/1.50
3755538	283	59	1.72/1.50	250-290HP FI Corvette
3755539	283	58-62	1.72/1.50
3755549	283	57-62	1.72/1.50
3755550	283	57-62	1.72/1.50	Dual Quad FI & 4-brl Corvette
3755585	327	62-67	1.72/1.50
3755896	283	62-64	1.72/1.50
3760116	283	59	1.72/1.50	Dual Quad FI & 4-brl Corvette
376445	350	80-84	1.72/1.50
376450	262/305	75-76	1.72/1.50
376495	350	Jun-79	1.94/1.50	76cc
3767460	265/283/327	55-67	1.72/1.50	Car & Truck Corvette
3767462	327	62-67	1.72/1.50
3767465	283	60-61	1.72/1.50	Dual Quad FI & 4-brl Corvette
3767754	283	60-61	1.72/1.50
3767792	283	60-67	1.72/1.50
3770126	327/350	67-70	1.94/1.50
3773012	265	55	1.72/1.50
3774634	327	64-67	1.72/1.50
3774682	283/327	60-67	1.72/1.50
3774684	283/327	57-67	1.72/1.50
3774690	283	58	1.72/1.50	FI Corvette
3774692	283	58-64	1.72/1.50	Dual Quad FI & 4-brl Corvette
3782461	302/327/350	61-70	1.94/1.50	Dual Quad FI & 4-brl Corvette 2.02/1.60 Doubble humps 64cc
3782462	327	67	1.94/1.50	Corvette 2.02/1.60
3792563	327	65-67
3795896	283/307/327	58-72	1.72/1.50	60cc
3796896	283	64-67	1.72/1.50	60cc Chevy II
3798996	327	63-67
3814462	350	67	1.94/1.50
3814480	283/327	60-67	1.72/1.50
3814482	327	62-67	1.72/1.50
3817680	283	59	1.72/1.50	FI 4-brl
3817681	327	62-67	1.72/1.50
3817682	283	61-62	1.72/1.50
3836839	265	55	1.72/1.50
3836842	283/327	57-67	1.72/1.50
3836924	283	63-64	1.72/1.50
3836942	283	58-62	1.72/1.50
3837063	283	58-62	1.72/1.50
3837064	265/283	56-62	1.72/1.50
3837065	265	55-56	1.72/1.50
3837775	283/327	62-67	1.72/1.50
383882	400	71-73
3848720	283	57-58	1.72/1.50
3849820	327	65	1.72/1.50
3854520	283/327	62-67	1.72/1.50
3867802	283	57-60	1.72/1.50	FI Corvette
3873064	265	56-57	1.72/1.50
3876487	350	71-73	1.94/1.50	76cc
3876775	283/327	57-67	1.72/1.50	76cc
3878775	327	64-67	1.72/1.50
3884520	283/327	60-67	1.72/1.50	60cc
3890462	302/327/350	62-68	1.94/1.50 2.02/1.60	64cc Doubble humps
3891462	302/327/350	62-67	1.94/1.50 2.02/1.60	64cc
3891492	327	64-67	1.94/1.50
3911011	327	68
3911032	307/327	68-70	1.72/1.50	70cc
3912264	283	58-62	1.72/1.50
3912265	283	63-64	1.72/1.50
3912291	302/327/350	68-70	1.94/1.50 2.02/1.60	64ccDoubble humps
3912311	350	67	1.94/1.50
3912313	327	65-73	1.72/1.50
3917264	302	67	2.02/1.60	64cc Z-28
3917290	327	68-70	1.72/1.50
3917291	302/327/350	62-69	1.94/1.50 2.02/1.60	64cc Doubble humps
3917292	327	67-68	1.94/1.50
3917293	307/327	68-69	1.72/1.50	76cc
3921175	327	66	1.94/1.50
3923441	350	67-76	1.94/1.50	76cc
3927185	307/327/350	68-79	1.72/1.50	70cc
3927186	302/327/350	68-72	1.94/1.50 2.02/1.60	64cc Doubble humps Bolt holes
3927187	302/350	69-70	2.02/1.60	64cc Corvette
3927188	307/327/350	69	1.72/1.50	76cc
3928454	307	68	1.72/1.50
3928455	302/327	68	2.02/1.60	64cc 325 & 350HP
3928494	327	68	2.02/1.60	64cc 350HP 4-brl
3928495	327	68	1.72/1.50
3931633	307	68-73	1.72/1.50
3931635	350	68-76	1.94/1.50	76cc
3931637	327	68-69
3931638	327	68	1.72/1.50
3931639	302	68	2.02/1.60	64cc
3932441	327/350	67-79	1.94/1.50	76cc
3932454	307/350	68-799	1.72/1.50	76cc
3933148	350	68-73		76cc
3941174	327	68	1.72/1.50
3946812	350	69	1.72/1.50
3946813	350	69-79		76cc
3947014	350	68-70
3947040	302/327/350	68-70	1.94/1.50 2.02/1.60	64cc
3947041	302/327/350	68-79	1.94/1.50 2.02/1.60	64cc
3951598	400	70-71	1.94/1.50	76cc
3961598	400	70-76	1.94/1.50	76cc
3964286	350	68-77	1.94/1.50	76cc
3970126	327/350	67-79	1.72/1.50
3973195	400	71-73	1.94/1.50	76cc
3973414	327/350	64-70	2.02/1.60	64cc Z-28 LT-1 corvette
3973487	350	68-79	1.94/1.50 2.02/1.60	76cc
3973487X	350	68-73	1.94/1.50 2.02/1.60	76cc X cast 10cc's
3973493	400	70-76	1.94/1.50	76cc
3986316	350	71-72	2.02/1.60	76cc
3986330	350	69-79	1.94/1.50	76cc
3986339	307/350	68-79	1.72/1.50	76cc
3986388	350	68-79	1.72/1.50	76cc
3990941	307/350	68-82
3991492	327/350	68-73	1.94/1.50 2.02/1.60	64cc Angle plug
399380	400	70-73		76cc
3997417	307	71	1.72/1.50
3998916	350/400	72-75	2.02/1.60	76cc
3998920	350	72-75	1.94/1.50	76cc
3998991	307/350	68-79	1.72/1.50	76cc
3998993	307/350	68-79	1.71/1.50 1.94/1.50	76cc
3998997	350/400	71-73	1.94/1.50	76cc
426424	305/350/400	72-82	1.72/1.50
458624	350	69-84	1.94/1.50	76cc
460703	350	78-80	1.94/1.50	76cc
462614	305/350	77-79	1.72/1.50
462624	350	76-87	1.94/1.50 2.02/1.60	76cc Crack prone
464033	350	76-86	1.94/1.50	76cc
464036	350	76-86	1.94/1.50	76cc
468642	350/400	75-84	1.72/1.50
471513	267	79-81	1.72/1.50
472424	305	76-79	1.72/1.50
474213	305	78-82	1.72/1.50
474214	350	78-82	1.94/1.50	76cc
475590	400	78-82	1.94/1.50	76cc
517513	267	79-81	1.72/1.50
6259515	350	73
6260855	350	73-75	1.94/1.50	76cc
6260856	350	73-76	1.94/1.50	76cc
6272070	350	73
10045427				Pontiac/Chevy Aluminum, 91cc chamber Large Rectangle Port
10049875				Pontiac/Chevy Aluminum Small Rectangle port
10051128	454	90-94	2.19/1.88	72cc Bowtie Aluminum Rectangular port 400cc intake
10052902	427			Oval Port Open chamber
10101136	454	91-94	2.06/1.77	Open chamber Oval port
10101140	366/427	91-01		Oval Port Closed chamber
10114156	454	91-01		Oval Port Open chamber
10121033	454	78-88	2.06/1.77	Open chamber Oval port
10141279	454	96-01		Vortec 7400 100cc chambers Oval Port
10487052	366	77-90		Oval Port Open chamber
12352783	454	79-93	2.06/1.77	Open chamber Oval port
12363391				Oval Port Bowtie Aluminum Signature Series
12363401				Rectangle Port Bowtie Aluminum Signature Series
12558162	496	01 & UP		Gen.VII Vortec 8100 8.1L truck
12560241	454	98-01		Vortec 7400 100cc chambers Oval Port
12562932	454/502	91-95		Oval Port truck crate motor 118cc chambers
12562934	502	00 & UP		GenVI Marine
14011077	454	89-94	2.19/1.88	118cc Replacement Aluminum Rectangular port 295cc intake
14025175	454	83-93	2.06/1.77	Open chamber Oval port
14044861	454	89-94	2.19/1.88	106cc Bowtie Aluminum Rectangular port 380cc intake
14081044	454	86-90	2.06/1.77	Open chamber Oval port
14081045	454	78-87		Oval Port Open chamber
14081052	366/427/454	85-87		Oval Port Open chamber
14092359	427	86-89	2.06/1.77	Open chamber Oval port
14092360	454	85-89	2.06/1.77	Open chamber Oval port
14096188	454	87-94	2.19/1.88	118cc Replacement Rectangular port 325cc intake
14097088	502	89-date	2.19/1.88	118cc Replacement Rectangular port 325cc intake GEN V
14101398	454	86-90	2.06/1.77	Open chamber Oval port
24502585				Olds/Chevy DRCE 2 Pro Stock aluminum
330864	366/427/454	70-81	2.06/1.77	Open chamber Oval port
330865	366/427/454	70-84	2.06/1.77	Open chamber Oval port
330866	366/427	68-78		Oval Port Open chamber
330867	427	68-73		Oval Port Open chamber
336768	427	73-76		Oval Port Open chamber
336781	454	73-85	2.06/1.77	113cc Oval port
343771	366/427/454	68-85	2.06/1.77	Open chamber Oval port
343772	366/427/454	76-84	2.06/1.77	Open chamber Oval port
343783	454	75-78	2.06/1.77	Open chamber Oval port
346236	454	75-87	2.06/1.77	113cc Oval port
346238	454	75-87	2.06/1.77	113cc Oval port
352625	454	70-76		Oval Port Open chamber
353049	454	70-73	2.06/1.77	113cc Oval port
366765	427/454	73-84	2.06/1.77	Open chamber Oval port
3732791	348	58
3758379	348	59-61
3759256	348	58
3767738	348	59-61
3781147	348	60-61		High Perf
3795586	409	61		360HP
3814690	409	62-64		High Perf
3819333	348/409	62-65
3830817	409	63-65		340HP
3837731	409	63		High Perf Z-11
3852583	409	65		400HP
3856206	396	65-66	2.06/1.77	98cc Oval port
3856208	396	65	2.06/1.77	109cc Z-16/L-37 Rectangular port
3856213	366	66-70	2.06/1.77	Closed chamber Oval port
3856260	396	68		Oval Port Closed chamber
3872702	396/427	66	2.06/1.77	98cc Oval port L-34/L-35/L-36
3873858	396/427	66-67	2.06/1.77	109cc L-78/L-72 Rectangular port
3876875	427	66-70	2.06/1.77	Closed chamber Oval port
3904390	396/427	66-67	2.06/1.77	98cc Oval port L-34/L-35/L-36
3904391	396/427	65-67	2.06/1.77	107cc L-78/L-71/L-72 Rectangular port
3904392	427	67	2.19/1.88	106cc L-88/L-89 Aluminum Rectangular port
3904393	366	66-68	2.06/1.77	Closed chamber Oval port
3908952	427	67		Oval Port Open chamber
3909802	396/427	66-67	2.06/1.77	100cc Oval port L-34/L-35/L-36/L-68
3917215	396/427	67-69	2.06/1.77	100cc Oval port L-34/L-35
3917219	366/427	66-70	2.06/1.77	Closed chamber Oval port
3919840	396/427	67-69	2.06/1.77	107cc L-78/L-71/L-72 Rectangular port
3919842	396/427	68-69	2.19/1.88	106cc L-88/L-89 Aluminum Rectangular port
3931063	396/427	69-70	2.06/1.77	100cc Oval port L-34/L-35
3933148	366/396/427	69	2.06/1.77	122cc Oval port
3933149	427	69-70	2.06/1.77	122cc Oval port
3935401	427	68-76		Oval Port Open chamber
3946074	396/454	69-71	2.19/1.88	118cc L-88/ZL-1 Aluminum Rectangular port
3964280	427/454	66-70	2.06/1.77	Closed chamber Oval port
3964290	396/402/427/454	69-70	2.06/1.77	100cc Oval port
3964291	396/402/427/454	69-70	2.19/1.88	108cc L-78/L-71/L-72/LS-6 Rectangular port 325cc intake
3964292	454	70	2.19/1.88	109cc LS-6 Rectangular port
3965198	396	69	2.06/1.77	Open chamber Oval port
3975950	366/427	68-70	2.06/1.77	Closed chamber Oval port
3986133	366/427	70-85	2.06/1.77	Closed chamber Oval port
3986136	366/427	70-84	2.06/1.77	Closed chamber Oval port
3993820	402/454	71	2.06/1.77	113cc Oval port
3994025	454	71	2.19/1.88	118cc LS-6 Rectangular port
3994026	454	71	2.19/1.88	118cc LS-6 Rectangular port
3999241	402/454	72	2.06/1.77	113cc Oval port
473328	366	68-85	2.06/1.77	Open chamber Oval port
6258723	454	71	2.19/1.88	118cc LS-6 Rectangular port
6272292	402/454	71	2.06/1.77	Open chamber Oval port
6272990	454	71-94	2.19/1.88	118cc Replacement Rectangular port 325cc intake

Use these casting numbers to identify the exhaust manifolds you have.

Casting Number	Years	Engine	Side	Comments
336706	74-78	350	RH
336707	74-78	350	LH
336708	74-78	350	RH
336709	74-78	350	RH	Camaro & Z-28 with A.I.R.
336710	74-78	307, 350 & 400	LH	Chevelle, Camaro, Z-28, Nova and P***enger with A.I.R.
346222	74-80	307, 350 & 400	RH	Chevelle, Camaro, Nova and P***enger with A.I.R.
346247	75-77	262, 350 & 400	LH	Chevelle, Camaro, Monte Carlo and P***enger 110, 145, 155 & 175 HP
346248	75-77	262, 350 & 400	RH	Chevelle, Camaro, Monte Carlo and P***enger 110, 145, 155 & 175 HP
354432	75-76	262	RH	110 HP
354433	75-76	262	LH	110 HP
364753	76-80	307, 350 & 400	LH	Camaro, Monte Carlo, Malibu and P***enger
372243	74-83	307, 350 & 400	RH	Corvette and Replacement manifold
462697	77-79	267 & 305	LH	Monte Carlo and Malibu
462698	77-83	267 & 305	RH	Monte Carlo and Malibu
474008	78-82	267, 305 & 350	RH
745994	80-86	267 & 305	LH
3704791	55-56	265	LH	Corvette and P***enger 195 HP
3704792	55-56	265	RH	Corvette and P***enger 195 HP
3725563	56	265	LH & RH	Corvette and P***enger 210 HP 2-Bolt Flange
3731557	56	265	LH	Corvette and P***enger 225 HP
3731558	56	265	RH	Corvette and P***enger 225 HP
3732498	58	283	RH	Corvette FI
3733975	57	283	LH	Corvette and P***enger 220, 245, 250, 270 & 283 HP
3733976	57	283	RH	Corvette and P***enger 220, 245, 250, 270 & 283 HP
3737902	62-65	327	RH	300, 340, 360, 365 & 375 HP 2.5" Outlet
3746563	65	327	LH	300 HP
3747038	58-65	283 & 327	RH	Corvette and P***enger 220, 250 & 300 HP 1.9" Outlet
3747042	58-68	283, 307 & 327	RH	Corvette and P***enger 195, 200, 220, 250, 270, 275, 290, 300 & 350 HP 1.9" Outlet
3747938	64	327	LH & RH	250 & 300 HP
3747942	65	327	LH & RH	250, 350 & 365 HP
3749965	58-63	283 & 327	LH	Corvette and P***enger 230, 245, 250, 270, 275, 290, 300 & 315 HP
3750556	58-65	283 & 327	RH	Corvette and P***enger 230, 245, 250, 270, 275, 290, 300 & 315 HP
3780728	64-67	327	LH	Chevy II
3790729	64-67	283 & 327	LH	195, 220, 250, 270, 275, 300 & 350 HP 2.0" Outlet Chevy II
3790730	64-65	283 & 327	RH	220, 250 & 300 HP 1.9" Outlet Chevy II
3791162	65-66	283 & 327	RH	Chevy II with AC
3791182	66-67	283 & 327	RH	P***enger with AC
3797901	62-63	327	LH	Corvette 300, 340 & 360 HP
3797902	62-65	327	RH	Corvette 300, 340, 360, 365 & 375 HP 2.5" Outlet
3797942	63-65	327	LH & RH	Corvette 300, 360, 365 & 375 HP 2.5" Outlet
3834947	64-68	283, 307 & 327	LH	Chevelle 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 2.0" Outlet
3836968	55-56	265	RH	Corvette and P***enger 195 HP
3837069	55	265	LH	Corvette and P***enger 195 HP
3840715	64	283 & 327	LH	Chevelle
3840912	64-68	283, 307, 327 & 350	RH	Chevelle, Camaro and Nova 195, 200, 210, 220, 250, 275, 295, 300, 325, 350 & 365 HP 1.9" Outlet
3846559	64-71	327 & 350	LH	Corvette 250, 270, 300 & 350 HP 2.0" Outlet
3846563	64-65	327	LH	Corvette 300, 350 & 365 HP 2.5" Outlet
3846659	66	327	LH	350 HP
3849288	64-67	283 & 327	RH	195, 220, 275 & 350 HP 1.9" Outlet Chevy II
3849290	64-67	283 & 327	RH	195, 220, 275 & 350 HP 1.9" Outlet Chevy II with AC
3855163	65-68	283, 307 & 327	LH	P***enger and Truck 195, 200, 220, 250 & 275 HP 2.0" Outlet
3872723	66-67	283 & 327	LH	195, 220, 275 & 350 HP 2.0" Outlet Chevy II A.I.R.
3872729	66	283 & 327	LH	Chevelle 195,220, 275 & 350 HP 2.0" Outlet A.I.R.
3872730	66-68	283, 302, 307 & 327	RH	Chevelle, Camaro & Z-28 200, 210, 220, 250, 275, 290, 325 & 350 HP 1.9" Outlet A.I.R.
3872738	66-67	283 & 327	RH	195, 220, 275 & 350 HP 1.9" Outlet Chevy II
3872741	66-68	283, 307 & 327	LH	P***enger 195, 200, 220, 250 & 275 HP 2.0" Outlet A.I.R.
3872765	67-71	327 & 350	LH	Corvette 300, 330, 350 & 370 HP 2.0" Outlet A.I.R.
3872778	66-68	283, 307 & 327	RH	Corvette, P***enger and Truck 195, 200, 250, 275, 300 & 350 HP 1.9" Outlet A.I.R.
3887186	66	283	RH	220 HP 1.9" Outlet
3890424	64-67	283 & 327	RH	Chevy II
3892679	66-68	283, 302, 307, 327 & 350	LH	Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet
3892683	66-68	283, 302, 307, 327 & 350	LH	Chevelle, Camaro and Z-28 195, 200, 210, 220, 250, 275, 290, 295 & 325 HP 2.0" Outlet
3893604	66-68	283 & 327	RH	P***enger A.I.R.
3893608	67-68	283, 302, 307, 327 & 350	RH	Chevelle, Camaro and Z-28 195, 200, 210, 250, 275, 290, 295 & 325 HP 1.9" Outlet
3896956	67-68	283 & 327	RH	Truck
3905364	69-72	307, 350 & 400	RH	Truck
3932376	69-70	307, 327, 350 & 400	RH	Chevelle and Camaro 200, 210, 250, 255, 265 & 300 HP 1.9" Outlet
3932461	69-74	327 & 350	LH & RH	Corvette 190, 195, 200, 235, 255, 300, 330 & 350 HP 1.9" Outlet A.I.R.
3932465	69-70	327, 350 & 400	RH	P***enger 235, 250, 255, 265, 300 & 350 HP 1.9" Outlet
3932469	69-70	327 & 350	LH	P***enger 235, 250, 255 & 300 HP 2.0" Outlet
3932473	69-70	327, 350 & 400	LH	P***enger 235, 250, 255, 265 & 300 HP 2.0" Outlet
3932481	69	350	RH	Corvette
3940972	67	350	RH	Camaro 295 HP
3942527	69-70	302, 307, 327 & 350	LH	Chevelle, Camaro, Z-28 and Nova 200, 210, 250, 255, 290, 300 & 360 HP 2.0" Outlet A.I.R.
3942529	69-70	302, 307, 327, 350 & 400	LH	Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet
3946826	69-70	302, 307, 327 & 350	RH	Chevelle, Camaro, Z-28 and Nova200, 210, 250, 255, 290, 300 & 360 HP 1.9" Outlet A.I.R.
3959562	72-74	307, 350 & 400	RH	Chevelle, Camaro and Z-28 115, 130, 145, 150, 160, 165, 170, 175, 180, 185 & 245 HP 2.0" Outlet A.I.R.
3973432	70-74	307, 350 & 400	RH	Chevelle, Camaro, Nova and P***enger 115, 130, 150, 165, 170, 175, 180, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet
3986330	69-73	302, 307, 327 & 350	RH	Camaro and Z-28 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 1.9" Outlet A.I.R.
3989036	71-75	350	LH & RH	Corvette and P***enger 165, 195, 200, 205 & 270 HP 2.0" Outlet with and without A.I.R.
3989041	69-74	302, 307, 327, 350 & 400	LH	Camaro, Z-28 and Nova 115, 130, 145, 150, 160, 165, 170, 180, 185, 200, 210, 245, 250, 255, 290, 300, 330 & 360 HP 2.0" Outlet with and without A.I.R.
3989043	70-73	307, 350 & 400	LH	Chevelle, Camaro, Nova and P***enger 105, 115, 130, 145, 150, 165, 175, 185, 200, 245, 250, 255, 270 & 300 HP 2.0" Outlet with and without A.I.R.
3989055	69-72	307, 350 & 400	LH
3997742	71-78	307 & 350	RH	2.0" Outlet
3998902	72-78	307 & 350	RH
10045315	88-94	305 & 350	LH
10045317	88-94	305 & 350	LH
10045317	88-94	305 & 350	LH
10046123	87-92	305 & 350	LH
10046139	84-85	350	LH
10046140	84-85	350	RH
10055734	87-91	350	RH
10092901	89-91	350	LH
10092903	89-94	350	LH
10092905	89-94	350	LH
10108437	87-93	305 & 350	RH
10128448	91-93	305 & 350	LH
10128483	91-93	305 & 350	LH
10166144	91-94	350	RH
10166145	87-90	305 & 350	LH
10166147	89-94	305 & 350	LH
10166158	89-94	305 & 350	RH
10168494	94	265 & 350	LH
10207656	93-94	350	LH
10207657	93	350	RH
10433037	82-86	305	LH
12550621	94	265	RH
12550622	91	350	RH
14007400	80-86	267 & 305	LH
14014437	80-84	305	LH
14014438	80-84	305	RH
14014459	81-86	305 & 350	LH
14014500	79-86	267, 305 & 350	RH
14022625	80-81	305	LH
14031361	82-86	305	RH
14031376	81-86	350	RH
14034069	81-86	350	RH
14034075	81-86	305 & 350	LH
14043373	82-86	305	LH
14050233	83-86	305 & 350	LH
14050282	83-87	305 & 350	RH
14050287	82-86	305	LH
14057029	84-85	350	LH
14057030	84-85	350	RH
14060630	81-86	350	RH
14060633	81-86	305 & 350	LH
14067365	77-86	267, 305, 350 & 400	LH
14068667	85-88	350	LH
14068670	85-88	350	RH
14071200	83-86	305	RH
14075611	83-86	305	LH
14079295	85-86	305 & 350	LH
14079296	85-86	305 & 350	RH
14087511	86-91	350	LH
14087512	86-91	350	RH
14093653	87-90	305 & 350	LH
14093654	87-90	305 & 350	RH
14093655	87-90	305 & 350	LH
14093658	88-94	305 & 350	RH
14093660	87-90	305 & 350	RH
14093682	87-90	305 & 350	RH
14094045	87-90	305 & 350	LH
14094063	87-92	305 & 350	LH
14094064	87-92	305 & 350	RH
14094065	85-88	350	RH
14101054	87-88	305 & 350	RH
14102016	88-94	305 & 350	RH
14102018	89-94	305 & 350	RH
14103206	87-91	305 & 350	RH
14103207	87-91	305 & 350	LH
329225	73-76	454	LH	Chevelle and P***enger with and without A.I.R.
353028	73-76	454	LH	Chevelle and P***enger with and without A.I.R.
353030	73-76	454	LH	Police
3732793	58-61	348	LH	P***enger
3732794	58-61	348	RH	P***enger
3767583	59-61	348 & 409	LH	P***enger
3767584	59-61	348 & 409	RH	P***enger
3814682	62-64	409	RH	P***enger
3814683	62-64	409	LH	P***enger
3822925	62-64	409	LH	P***enger & Z-11
3822926	62-64	409	RH	P***enger & Z-11
3855161	65	409	LH	P***enger 340 & 400 HP
3855162	65	409	RH	P***enger 340 & 400 HP
3856297	65	396	LH	325 HP
3856301	65	396	LH	425 HP Corvette
3856302	65	396	RH	425 HP Corvette
3856306	65	396	RH	P***enger 325 HP
3857297	65	396	LH	P***enger 325 HP
3868874	65-66	396	RH	Chevelle 325, 360 & 375 HP Z-16
3869925	65	396	LH	Chevelle 375 HP Z-16
3872770	66	396	RH
3880827	66-69	427 & 454	LH	Corvette
3880828	66-72	427 & 454	RH	Corvette 270, 365, 390 & 425 HP with and without A.I.R. LS-5 & LS-6
3880869	70-72	454	LH	Corvette 365 & 425 HP with and without A.I.R. LS-5 & LS-6
3883827	66	427	LH	P***enger
3883828	66	427	RH	P***enger
3883999	66	396	LH	Chevelle 325, 360 & 375 HP
3884504	66-67	396 & 427	RH	P***enger 325, 385 & 390 HP
3892307	66-67	396 & 427	LH	P***enger 325 & 390 HP
3902401	67	396	LH	Chevelle
3904399	66	396	LH
3909879	67-70	396, 427 & 454	LH	Chevelle, Camaro and Nova 325, 350, 375, 425, 430 & 450 HP LS-6 COPO
3909880	67	396	RH	Chevelle and Camaro 325, 350 & 375 HP
3914613	68-70	396 & 427	LH	P***enger 265, 325, 335, 345, 390 & 425 HP
3916178	68-70	396, 427 & 454	RH	Chevelle, Camaro, Nova and P***enger 325, 350, 375, 425, 430 & 450 HP COPO LS-5 & LS-6
3969869	70-74	454	LH	Corvette 270, 365 & 390 HP with and without A.I.R. LS-5
3989310	71-72	402 & 454	RH	Chevelle, Camaro, Monte Carlo and P***enger
3989343	71-72	402 & 454	LH	Chevelle, Camaro, Monte Carlo and P***enger
3994045	73-75	454	LH	Police

Chevy Intake Manifolds

Use these numbers to identify your stock Chevy intake.

Casting Number	CID	Years	Type	Comments
10051103	350	1990	4-Brl	Aluminum Bowtie Single plane
10066013	350	87-89	TPI	Corvette Base M*** air 9th injector style Aluminum heads (86 and older)
10077151	305/350	90-92	TPI	Plenum Speed density type
10086016	305/350	90-92	TPI	Base Speed density type (87 & UP intake bolt pattern)
10108630	350	92-97	MFI	LT-1
12550631	350	96	MFI	LT-4 Power coated red
12552138	265	93-96	MFI	L-99 (lt-1 style 4.3L V-8)
14007374	305	79-82	2-Brl	Aluminum
14014432	350	1981	4-Brl	Aluminum Quadrajet Z-28
14057053	305/350	80-88	4-Brl	Aluminum Quadrajet
14081006	350	87-89	TPI	Corvette Plenum M*** air 9th injector style
14096242	350	1990	4-Brl	Holley High rise Bowtie
340261	350/400	74-76	4-Brl	Quadrajet
340266	305/350/400	73-82	2-Brl
340281	305/350	82-85	4-Brl	Quadrajet
346249	305/350/400	75-77	4-Brl	Quadrajet
346250	305/350	76-82	4-Brl	Quadrajet
346260	267/305/350	73-77	2-Brl
355943	262	1975	2-Brl
3704790	265	1955	2-Brl
3711348	265	1955	4-Brl	WCFB
3728725	265	1956	Dual Quad	Aluminum
3731394	283	56-57	Dual Quad	Aluminum
3731398	283	1957	4-Brl	WCFB
3732690	265/283	56-57	2-Brl
3732880	265/283	56-57	2-Brl
3735444	265	1956	2-Brl
3735448	265	1956	4-Brl	WCFB
373598	305	78-81	2-Brl	Aluminum
3737109	265	1956	4-Brl	WCFB
3739653	283	58-61	Dual Quad	Aluminum
3741193	283	1957	Fuel Injection	Aluminum
3746826	265/283	56-63	2-Brl
3746829	283/327	58-64	4-Brl	WCFB
3753809	283	59-62	2-Brl
3783244	327	62-63	4-Brl	WCFB
3794129	327	1963	4-Brl	Aluminum
3795397	327	1962	4-Brl	Aluminum
3799349	327	62-64	4-Brl	Carter AFB
3826810	327	63-65	Fuel Injection	Aluminum
3837109	265/283	56-57	4-Brl	WCFB
3840905	283	64-65	2-Brl
3844457	283/327	64-65	4-Brl	WCFB
3844459	327	63-65	4-Brl	Carter AFB
3844461	327	64-65	4-Brl	Aluminum
3866922	283/327	62-65	4-Brl	WCFB
3872783	283/327	66-67	4-Brl	Holley
3872788	238/327	66-67	4-Brl	Holley
3875954	327	1966	4-Brl	Carter AFB
3877652	283/327	65-67	2-Brl
3882858	283	1966	4-Brl	Carter AFB
3890490	327	66-67	4-Brl	Aluminum
3905393	327/350	1967	4-Brl	Quadrajet
3910601	327	67-68	2-Brl
3916313	307/327/350/400	69-70	2-Brl
3917610	302	67-68	4-Brl	Aluminum
3919801	307/327	1968	2-Brl
3919803	327/350	67-68	4-Brl	Quadrajet
3927183	307/327	69-70	2-Brl
3927184	350	1969	4-Brl	Quadrajet
3932472	302/350	69-70	4-Brl	Aluminum
3941126	302	68-69	Cross Ram	Aluminum base
3941130	302	68-69	Cross Ram	Aluminum top plate
3958622	307/327	69-70	2-Brl
3958626	350	69-70	2-Brl
3959594	350	71-72	4-Brl	Aluminum
3965577	350	1970	4-Brl	Quadrajet
3972110	350	1970	4-Brl	Aluminum
3972114	350	70-72	4-Brl	Aluminum
3972116	350	1970	4-Brl	Aluminum Service replacement part
3972361	350	1971	4-Brl	Aluminum
3973465	307	69-71	2-Brl
3973467	350/400	1971	2-Brl
3973469	350	1971	4-Brl	Quadrajet
3987361	350	69-70	4-Brl	Quadrajet
3990948	350	1971	2-Brl
3991004	350	1973	4-Brl	Quadrajet
3991005	307	1971	2-Brl
3997770	350	1973	4-Brl	Quadrajet
3997771	350	1973	4-Brl	Quadrajet
3997772	350	1973	2-Brl
3997773	350/400	1973	2-Brl
458520	305/350	77-82	4-Brl	Quadrajet
458520	305/350	82-87	4-Brl	Aluminum
6262928	307	1972	2-Brl
6262930	350	1972	4-Brl	Quadrajet
6262936	307	1972	2-Brl
6263751	350	1972	4-Brl	Quadrajet
6263752	350/400	1972	2-Brl
626932	350	71-72	4-Brl	Quadrajet
6271060	307	1973	2-Brl
6271061	307	1973	2-Brl
7014360	283	1957	Rochester FI
7014520	283	1957	Rochester FI
7014800	283	57-58	Rochester FI
7014800R	283	1985	Rochester FI
7014900	283	1958	Rochester FI
7014900R	283	1958-59	Rochester FI
7014960	283	1958	Rochester FI
7017200	283	59-61	Rochester FI
7017250	283	59-61	Rochester FI
7017300	283	59-60	Rochester FI
7017300R	283	1959	Rochester FI
7017310	283	60-61	Rochester FI
7017320	283	1960	Rochester FI
7017355	327	1962	Rochester FI
7017360	327	1962	Rochester FI
7017375	327	1963	Rochester FI
7017375R	327	1964	Rochester FI
7017380	327	64-65	Rochester FI
336789	454	74	Q-jet	Oval port
346242	454	75	Q-jet	Oval port
353015	454	73	Q-jet	Oval port
3732757	348	58-62	4-Brl
3749948	348	58-61	Three duce
3753748	348	60-61	Dual quad	Aluminum
3760436	348	58-59	4-Brl
3767579	348/409	61	4-Brl
3770084	348	58-59	4-Brl
3772265	348	60-61	4-Brl
3780540	348	58-59	4-Brl	Aluminum
3797775	348	59-60	4-Brl
3797776	409	61	4-Brl
3813678	409	62-63	4-Brl
3814881	409	62-64	Dual quad	Aluminum
3830623	409	63	Dual quad	Aluminum Z-11
3830831	409	63	4-Brl	340HP
3844463	409	64-65	4-Brl	400HP
3844464	409	64-65	4-Brl	340HP
3844472	348/409	62-65	4-Brl
3856289	396	65-66	Q-jet	Oval port L-35
3866948	396/427	66-67	Holley	Oval port L-34/L-35
3866963	396	65	Holley	Rectangular port Aluminum L-37
3883984	396/427	66-68	Q-jet	Oval port L-35/L-36
3885069	396/427	66-68	Holley	Rectangular port Aluminum L-78/L-72
3886093	427	67	Holley	Rectangular port Aluminum L-88
3894374	427	67	Three duce	Rectangular port Aluminum L-71
3894382	427	67	Three duce	Oval port Aluminum L-68
3919849	427	68	Q-jet	Oval port Aluminum L-36
3919850	427	68	Three duce	Oval port Aluminum L-68
3919852	427	68	Three duce	Rectangular port Aluminum L-71
3919878	396/427	68	Holley	Rectangular port Aluminum L-78/L-72
3931067	396/427	69	Q-jet	Oval port L-35/L-36
3933163	396/427	68-69	Holley	Rectangular port Aluminum L-78/L-89 COPO
3933198	427	68-69	Holley	Rectangular port Aluminum L-88/ZL-1
3937793	427	68	Q-jet	Oval port Aluminum L-36
3937795	427	69	Three duce	Oval port Aluminum L-68
3937797	427	69	Three duce	Rectangular port Aluminum L-71
393841	454	73-75	Q-jet	Oval port
3947801	427	69	Q-jet	Oval port Aluminum L-36
3952900	396	69	2-Brl	Oval port
3955287	402/454	70-71	Q-jet	Oval port LS-3/LS-5
3963569	396/402/454	70-71	Holley	Rectangular port Aluminum Low rise L-78/L-89/LS-6
3967474	454	71	Holley	Rectangular port Aluminum
6263753	402/454	72	Q-jet	Oval port LS-3/LS-5
6269318	454	72	Holley	Rectangular port Aluminum