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- GM exhaust Casting Numbers
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 |