You can learn here the Small Block Chevrolet engine’s special codes called SBC head-casting numbers. These codes have much information about the cylinder head’s features and origin.
In this article, you can take a close look at these numbers, and you can see how they help us tell Small Block Chevrolet engines apart.
Also, check LS Firing Order and Cylinder Numbers [Diagram]
How to Locate SBC Head, Casting Numbers
Lift The Hood:
Make sure that the engine is safe and cool. Open the hoop to get the engine top.
Find The Cylinder Head:
Find out which cylinder head it is. That’s the big metal part that sits above the engine block.
Look Near The Valve Cover:
The casting number is mostly located on the side of the head, close to the valve cover, on Small Block Chevrolet engines. Normally, it’s seen on the upper surface.
Clean The Area:
Smoothly remove any dirt or grime from the area using a brush or rag. The casting number will be simpler to read as a result.
SBC Head Casting Numbers
Find your SBC head casting number in the list to access the specific information you are looking for.
Casting numbers | Years | C.I.D. | Valves | Chamber Size | Notes |
---|---|---|---|---|---|
176450 | 75-76 | 262 – 305 | 1.71 / 1.5 | N/A | N/A |
330545 | 73 | 350 | 2.02/1.60 | 76cc | N/A |
330862 | 71-73 | 400 | 1.94/1.50 | N/A | N/A |
330864 | 70-81 | 366/427/454 | 2.06/1.77 | N/A | Open chamber Oval port |
330865 | 70-84 | 366/427/454 | 2.06/1.77 | N/A | Open chamber Oval port |
330866 | 68-78 | 366/427 | N/A | N/A | Oval Port Open chamber |
330867 | 68-73 | 427 | N/A | N/A | Oval Port Open chamber |
333881 | 74-75 | 350 | 2.02/1.60 | 76cc | N/A |
333882 | 74-80 | 350/400 | N/A | 76cc | N/A |
336768 | 73-76 | 427 | N/A | N/A | Oval Port Open chamber |
336781 | 73-85 | 454 | 2.06/1.77 | N/A | 113cc Oval port |
340292 | 70’s | N/A | N/A | 64cc | angle plug, over the counter |
343771 | 68-85 | 366/427/454 | 2.06/1.77 | N/A | Open chamber Oval port |
343772 | 76-84 | 366/427/454 | 2.06/1.77 | N/A | Open chamber Oval port |
343783 | 75-78 | 454 | 2.06/1.77 | N/A | Open chamber Oval port |
346236 | 75-87 | 454 | 2.06/1.77 | N/A | 113cc Oval port |
346238 | 75-87 | 454 | 2.06/1.77 | N/A | 113cc Oval port |
352625 | 70-76 | 454 | N/A | N/A | Oval Port Open chamber |
353049 | 70-73 | 454 | 2.06/1.77 | N/A | 113cc Oval port |
354434 | 75-79 | 262/267/305 | N/A | 60cc | N/A |
358741 | 76-79 | 305 | N/A | N/A | N/A |
359944 | 71-79 | 350 | 1.94/1.50 | 76cc | N/A |
366765 | 73-84 | 427/454 | 2.06/1.77 | N/A | Open chamber Oval port |
367450 | 75-76 | 262 | N/A | N/A | N/A |
376445 | 77-85 | 350 | N/A | 76cc | N/A |
376450 | 75-81 | 262/267/305 | N/A | 60cc | 6 or 7 exhaust bolt holes |
376455 | 77-85 | 350 | N/A | N/A | N/A |
376495 | 79 | 350 | 1.94/1.50 | 76cc | N/A |
383882 | 71-73 | 400 | N/A | N/A | N/A |
399380 | 70-73 | 400 | N/A | 76cc | N/A |
426424 | 72-82 | 305/350/400 | 1.72/1.50 | N/A | N/A |
458624 | 69-84 | 350 | 1.94/1.50 | 76cc | N/A |
458642 | 75-84 | 350 | N/A | N/A | N/A |
460703 | 78-80 | 350 | 1.94/1.50 | 76cc | N/A |
462614 | 77-79 | 305 | N/A | 60cc | N/A |
462624 | 75-86 | 350/400 | 1.72/1.50; 194/1.50; 2.02/1.60 |
76cc | N/A |
464033 | 76-86 | 350 | 1.94/1.50 | 76cc | N/A |
464036 | 76-86 | 350 | 1.94/1.50 | 76cc | N/A |
468642 | 76-up | 350/400 | N/A | N/A | N/A |
471513 | 79 | 267/350 | N/A | N/A | N/A |
472424 | 76-79 | 305 | 1.72/1.50 | N/A | N/A |
473328 | 68-85 | 366 | 2.06/1.77 | N/A | Open chamber Oval port |
474213 | 78-82 | 305 | 1.72/1.50 | N/A | N/A |
474214 | 78-82 | 350 | 1.94/1.50 | 76cc | N/A |
475590 | 78-82 | 400 | 1.94/1.50 | 76cc | N/A |
517513 | 79 | 267/350 | N/A | N/A | N/A |
1816887 | 63 | 283 | N/A | N/A | Made in “Canada” GMC Truck |
3030817 | 74 | 400 | N/A | N/A | 2-bolt |
3238882 | 68-69 | 350 | 1.94/1.50 | 76cc | N/A |
3297185 | 57-67 | 307/327/350 | 1.72/1.50 | N/A | N/A |
3391635 | 68-76 | 305 | N/A | N/A | N/A |
3636839 | 55 | 265 | N/A | N/A | N/A |
3703523 | 55 | 265 | 1.72/1.50 | N/A | 195HP |
3703524 | 55 | 265 | N/A | N/A | N/A |
3713358 | 55-56 | 265 | N/A | N/A | N/A |
3713569 | 55-56 | 265 | N/A | N/A | N/A |
3720991 | 56-57 | 265 | N/A | N/A | N/A |
3725306 | 56 | 265 | N/A | N/A | N/A |
3727185 | 69-73 | 307 | N/A | N/A | N/A |
3731262 | 56 | 265 | 1.72/1.50 | N/A | Dual Quad Corvette |
3731539 | 57 | 283 | N/A | N/A | 283 HP FI |
3731544 | 57-61 | 283 | N/A | N/A | N/A |
3731548 | 57-62 | 283 | N/A | N/A | N/A |
3731554 | 57-62 | 283 | N/A | N/A | N/A |
3731556 | 57 | 283 | N/A | N/A | N/AMade in “Canada” Truck |
3731762 | 56 | 265 | N/A | N/A | Vette 2×4 Carbs |
3732791 | 58 | 348 | N/A | N/A | N/A |
3737465 | 60-61 | 283 | N/A | N/A | N/A |
3737739 | 57-62 | 283 | N/A | N/A | 283 and 283 Corvette F.I. |
3737775 | 62-67 | 283/327 | N/A | N/A | N/A |
3740997 | 57 | 283 | 1.72/1.50 | N/A | Dual Quad FI & 4-brl 220-270HP |
3743056 | 58 | 283 | N/A | N/A | N/A |
3743096 | 62-67 | 327 | N/A | N/A | GMC Truck |
3747363 | 57-61 | 283 | N/A | N/A | N/A |
3747460 | 59-67 | 283/327 | N/A | 70cc | N/A |
3748056 | 62-67 | 327 | 1.72/1.50 | N/A | N/A |
3748720 | 57-58 | 283 | 1.72/1.50 | N/A | Dual Quad FI & 4-brl Corvette |
3748770 | 58 | 283 | N/A | N/A | N/A |
3748772 | 58-61 | 283 | N/A | N/A | N/A |
3755537 | 57-62 | 283 | N/A | N/A | N/A |
3755538 | 59 | 283 | 1.72/1.50 | N/A | 250-290HP FI Corvette |
3755539 | 58-62 | 283 | N/A | N/A | N/A |
3755549 | 57-62 | 283 | N/A | N/A | N/A |
3755550 | 59 | 283 | N/A | N/A | N/A |
3755585 | 62-67 | 327 | N/A | N/A | GMC Truck |
3755896 | 62-64 | 283 | 1.72/1.50 | N/A | N/A |
3756519 | 57-62 | 283 | N/A | N/A | 283 and 283 Corvette F.I. |
3758379 | 59-61 | 348 | N/A | N/A | N/A |
3759256 | 58 | 348 | N/A | N/A | N/A |
3760116 | 59 | 283 | 1.72/1.50 | N/A | Dual Quad FI & 4-brl Corvette |
3767460 | 59-60 | 283 | N/A | N/A | N/A |
3767462 | 62-67 | 327 | N/A | N/A | N/A |
3767465 | 59-61 | 283 | N/A | N/A | N/A |
3767738 | 59-61 | 348 | N/A | N/A | N/A |
3767754 | 59-61 | 283 | N/A | 60cc | N/A |
3767792 | 60-64 | 283 | N/A | N/A | N/A |
3770126 | 67-70 | 327/350 | 1.94/1.50 | N/A | N/A |
3773012 | 55 | 265 | 1.72/1.50 | N/A | N/A |
3774634 | 64-67 | 327 | 1.72/1.50 | N/A | N/A |
3774682 | 60-64 | 283/327 | N/A | 70cc | N/A |
3774684 | 62-64 | 327 | N/A | 75cc | N/A |
3774690 | 58 | 283 | 1.72/1.50 | FI Corvette | |
3774692 | 58-64 | 283 | N/A | 60cc | N/A |
3776434 | 64-67 | 327 | N/A | N/A | N/A |
3781147 | 60-61 | 348 | N/A | N/A | High Perf |
3782461 | 64-66 | 327 | N/A | 62cc | Camel hump, no accessory holes, 160/62cc port volumes |
3782462 | 67 | 327 | 1.94/1.50 | N/A | Corvette 2.02/1.60 |
3782870 | 62-67 | 327 | N/A | N/A | 327 and 327 Corvette |
3782879 | 62-67 | 327 | N/A | N/A | 327 and 327 Corvette |
3789817 | 62-67 | 327 | N/A | N/A | 327 and 327 Corvette |
3789935 | 57-62 | 283 | N/A | N/A | N/A |
3790721 | 64-67 | 283 | N/A | N/A | N/A |
3792563 | 65-67 | 327 | N/A | N/A | N/A |
3795586 | 61 | 409 | N/A | N/A | 360HP |
3795893 | 58-72 | 283 – 307 – 327 | N/A | N/A | N/A |
3795896 | 63-65 | 283 | N/A | 60cc | N/A |
3796896 | 64-67 | 283 | 1.72/1.50 | 60cc | Chevy II |
3798996 | 63-67 | 327 | N/A | N/A | N/A |
3814462 | 67 | 350 | 1.94/1.50 | N/A | N/A |
3814480 | 60-67 | 283/327 | 1.72/1.50 | 70cc | N/A |
3814482 | 62-67 | 283/327/350 | N/A | 75cc | N/A |
3814690 | 62-64 | 409 | N/A | N/A | High Perf |
3817680 | 63-67 | 283/327 | N/A | N/A | N/A |
3817681 | 62-67 | 327 | N/A | N/A | N/A |
3817682 | 61-62 | 283 | N/A | N/A | N/A |
3819333 | 62-65 | 348/409 | N/A | N/A | N/A |
3830817 | 63-65 | 409 | N/A | N/A | 340HP |
3836839 | 55 | 265 | N/A | N/A | N/A |
3836842 | 57-67 | 283/327 | N/A | N/A | N/A |
3836924 | 63-64 | 283 | 1.72/1.50 | N/A | N/A |
3836942 | 58-62 | 283 | 1.72/1.50 | N/A | N/A |
3837063 | 58-62 | 283 | 1.72/1.50 | N/A | N/A |
3837064 | 56-62 | 265/283 | N/A | N/A | N/A |
3837065 | 55-56 | 265 | N/A | N/A | Truck |
3837731 | 63 | 409 | N/A | N/A | High Perf Z-11 |
3837739 | 57 | 283 | N/A | N/A | 283 and 283 truck |
3837775 | 62-67 | 283/327 | 1.72/1.50 | N/A | N/A |
3848720 | 57-58 | 283 | N/A | N/A | N/A |
3849820 | 65 | 327 | 1.72/1.50 | N/A | N/A |
3849852 | 57-67 | 283 | N/A | N/A | N/A |
3849935 | 65-67 | 283 | N/A | N/A | N/A |
3852172 | 62-64 | 327 | N/A | N/A | N/A |
3852583 | 65 | 409 | N/A | N/A | 400HP |
3854520 | 62-67 | 283/327 | 1.72/1.50 | N/A | |
3855961 | 68-76 | 350 | N/A | N/A | 2-bolt |
3856206 | 65-66 | 396 | 2.06/1.77 | 98cc | Oval port |
3856208 | 65 | 396 | 2.06/1.77 | 109cc | Z-16/L-37 Rectangular port |
3856213 | 66-70 | 366 | 2.06/1.77 | N/A | Closed chamber Oval port |
3856260 | 68 | 396 | N/A | N/A | Oval Port Closed chamber |
3858174 | 65-67 | 327 | N/A | N/A | |
3864812 | 57-67 | 283 | N/A | N/A | 283 and 283 truck |
3867802 | 57-60 | 283 | 1.72/1.50 | N/A | FI Corvette |
3872702 | 66 | 396/427 | 2.06/1.77 | 98cc | Oval port L-34/L-35/L-36 |
3873064 | 56-57 | 265 | 1.72/1.50 | N/A | N/A |
3873858 | 66-67 | 396/427 | 2.06/1.77 | 109cc | L-78/L-72 Rectangular port |
3876132 | 62-67 | 327 | N/A | N/A | 327 and 327 Corvette |
3876487 | 71-73 | 350 | 1.94/1.50 | 76cc | N/A |
3876775 | 60-67 | 283/327 | N/A | 75cc | N/A |
3876875 | 66-70 | 427 | 2.06/1.77 | N/A | Closed chamber Oval port |
3878775 | 64-67 | 327 | 1.72/1.50 | N/A | N/A |
3884520 | 60-67 | 283 | N/A | 60cc | Some marked “Made in Canada,” also used by Studebaker |
3890462 | 66-67 | 302/327/350 | N/A | 64cc | Camel hump, no accessory holes |
3891462 | 62-67 | 302/327/350 | 1.94/1.50 2.02/1.60 | 64cc | N/A |
3891492 | 64-67 | 327 | 1.94/1.50 | N/A | N/A |
3892657 | 65-67 | 327 | N/A | N/A | N/A |
3896944 | 65-67 | 283 | N/A | N/A | N/A |
3901068 | 87-up | 350 | N/A | 64cc | Crate motor, 285HP |
3904390 | 66-67 | 396/427 | 2.06/1.77 | 98cc | Oval port L-34/L-35/L-36 |
3904391 | 65-67 | 396/427 | 2.06/1.77 | 107cc | L-78/L-71/L-72 Rectangular port |
3904392 | 67 | 427 | 2.19/1.88 | 106cc | L-88/L-89 Aluminum Rectangular port |
3904393 | 66-68 | 366 | 2.06/1.77 | N/A | Closed chamber Oval port |
3908952 | 67 | 427 | N/A | N/A | Oval Port Open chamber |
3909802 | 66-67 | 396/427 | 2.06/1.77 | 100cc | Oval port L-34/L-35/L-36/L-68 |
3911011 | 68 | 327 | N/A | N/A | N/A |
3911032 | 68 | 307/327 | N/A | 70cc | N/A |
3912264 | 58-62 | 283 | N/A | N/A | N/A |
3912265 | 63-64 | 283 | N/A | N/A | N/A |
3912291 | 68-70 | 302/327/350 | 1.94/1.50 2.02/1.60 | 64cc | Double humps |
3912311 | 65-67 | 327 | N/A | N/A | N/A |
3912313 | 65-67 | 327 | N/A | N/A | N/A |
3914636 | 68-73 | 307 | N/A | N/A | N/A |
3914660 | 68-69 | 327 | N/A | N/A | 327 and 327 Corvette |
3914678 | 68-69 | 327 | N/A | N/A | 327 and 327 Corvette |
3917215 | 67-69 | 396/427 | 2.06/1.77 | 100cc | Oval port L-34/L-35 |
3917219 | 66-70 | 366/427 | 2.06/1.77 | N/A | Closed chamber Oval port |
3917264 | 67 | 302 | 2.02/1.60 | N/A | 64cc Z-28 |
3917290 | 67-68 | 307/327 | N/A | N/A | N/A |
3917291 | 67-68 | 302/327/350 | N/A | 64cc | Camel hump, no accessory holes |
3917292 | 68 | 327/350 | N/A | 64cc | Camel hump |
3917293 | 67-68 | 307/327 | N/A | 75cc | N/A |
3919840 | 67-69 | 396/427 | 2.06/1.77 | 107cc | L-78/L-71/L-72 Rectangular port |
3919842 | 68-69 | 396/427 | 2.19/1.88 | 106cc | L-88/L-89 Aluminum Rectangular port |
3921175 | 66 | 327 | 1.94/1.50 | N/A | N/A |
3923441 | 67-76 | 350 | 1.94/1.50 | 76cc | N/A |
3927185 | 69-76 | 307/327/350 | N/A | 70cc | N/A |
3927186 | 69-70 | 302/350 | N/A | 64cc | Camel hump has accessory holes |
3927187 | 69-70 | 350 | N/A | 64cc | Camel hump has accessory holes |
3927188 | 69 | 327 | N/A | 74cc | N/A |
3928454 | 68 | 307 | 1.72/1.50 | N/A | |
3928455 | 68 | 302/327 | 2.02/1.60 | 64cc | 325 & 350HP |
3928494 | 68 | 327 | 2.02/1.60 | 64cc | 350HP 4-bel |
3928495 | 68 | 327 | 1.72/1.50 | N/A | N/A |
3931063 | 69-70 | 396/427 | 2.06/1.77 | 100cc | Oval port L-34/L-35 |
3931633 | 68-73 | 307 | N/A | N/A | N/A |
3931635 | 68-76 | 350 | N/A | N/A | N/A |
3931637 | 68-69 | 327 | N/A | N/A | N/A |
3931638 | 68 | 327 | N/A | N/A | Truck |
3931639 | 68 | 302 | 2.02/1.60 | 64cc | N/A |
3932373 | 68-73 | 307 | N/A | N/A | N/A |
3932386 | 68-76 | 327 – 350 | N/A | N/A | 350 4-bolt and 327 Corvette |
3932388 | 68-76 | 350 | N/A | N/A | 2-bolt |
3932441 | 69-70 | 350 | N/A | 76cc | N/A |
3932454 | 69-73 | 307 | N/A | N/A | N/A |
3932882 | 76 | 400 | N/A | N/A | N/A |
3933148 | 68-73 | 350 | N/A | 76cc | N/A |
3933149 | 69-70 | 427 | 2.06/1.77 | 122cc | Oval port |
3935401 | 68-76 | 427 | N/A | N/A | Oval Port Open chamber |
3941174 | 68 | 327 | 1.72/1.50 | N/A | N/A |
3946074 | 69-71 | 396/454 | 2.19/1.88 | 118cc | L-88/ZL-1 Aluminum Rectangular port |
3946812 | 69 | 350 | N/A | N/A | N/A |
3946813 | 69-79 | 350 | N/A | N/A | Truck |
3947014 | 68-70 | 350 | N/A | N/A | N/A |
3947040 | 68 | 327 | N/A | 64cc | Right angle casting identifier, good HP head, used in trucks, no accessory holes |
3947041 | 69-70 | 302/350 | N/A | 64cc | Right angle casting identifier, accessory holes, good HP head |
3951509 | 74 | 400 | N/A | N/A | 2-bolt |
3951511 | 70-73 | 400 | N/A | N/A | 4-bolt |
3951598 | 70 | 400 | N/A | 76cc | N/A |
3956618 | 68-76 | 350 | N/A | N/A | 4-bolt |
3958618 | 68-76 | 350 | N/A | N/A | 2-bolt |
3961598 | 70-76 | 400 | 1.94/1.50 | 76cc | |
3964280 | 66-70 | 427/454 | 2.06/1.77 | N/A | Closed chamber Oval port |
3964286 | 350 | N/A | N/A | N/A | |
3964290 | 69-70 | 396/402/427/454 | 2.06/1.77 | 100cc | Oval port |
3964291 | 69-70 | 396/402/427/454 | 2.19/1.88 | 108cc | L-78/L-71/L-72/LS-6 Rectangular port 325cc intake |
3964292 | 70 | 454 | 2.19/1.88 | 109cc | LS-6 Rectangular port |
3965198 | 69 | 396 | 2.06/1.77 | N/A | Open chamber Oval port |
3965742 | 70 | 350 | N/A | N/A | over the counter, angle plug L98 style |
3970010 | 68-76 | 350 | N/A | N/A | 4-bolt |
3970020 | 68-73 | 307 | N/A | N/A | N/A |
3970126 | 67-71 | 327/350 | N/A | N/A | N/A |
3970721 | 64-67 | 283 | N/A | N/A | N/A |
3971293 | 68-69 | 307 – 327 | N/A | N/A | N/A |
3973195 | 71-73 | 400 | 1.94/1.50 | 76cc | N/A |
3973370 | 69-70 | 350 | N/A | 64cc | over the counter in the US, Canadian 350/300hp production use in Pontiac, straight or angle plug |
3973414 | 70 | 350 | N/A | 64cc | Camel Hump, LT1-350/370hp |
3973487 | 71-72 | 350 | 1.94/1.5; 2.02/1.6 |
75cc | was also used on ’71 350/330hp LT1 |
3973493 | 71-72 | 400 | N/A | 76cc | N/A |
3975950 | 68-70 | 366/427 | 2.06/1.77 | N/A | Closed chamber Oval port |
3981462 | 62-67 | 302-327-350 | N/A | N/A | N/A |
3986133 | 70-85 | 366/427 | 2.06/1.77 | N/A | Closed chamber Oval port |
3986136 | 70-84 | 366/427 | 2.06/1.77 | N/A | Closed chamber Oval port |
3986316 | 71 | 350 | N/A | 76cc | N/A |
3986330 | 69-79 | 350 | 1.94/1.50 | 76cc | N/A |
3986336 | 71 | 350 | N/A | 76cc | N/A |
3986339 | 71 | 307/350 | N/A | 74cc | N/A |
3986388 | 68-76 | 307/350 | N/A | N/A | N/A |
3990941 | 68-82 | 307/350 | N/A | N/A | N/A |
3991492 | 70 | 350 | N/A | 64cc | LT1, Camel hump, accessory holes, straight plug |
3993820 | 71 | 402/454 | 2.06/1.77 | 113cc | Oval port |
3994025 | 71 | 454 | 2.19/1.88 | 118cc | LS-6 Rectangular port |
3994026 | 71 | 454 | 2.19/1.88 | 118cc | LS-6 Rectangular port |
3997417 | 71 | 307 | 1.72/1.50 | N/A | N/A |
3998916 | 72 | 350 | N/A | 76cc | also used w/’72 350 LT1, big valve, screw-in studs |
3998920 | 72-73 | 350 | N/A | N/A | N/A |
3998991 | 72-73 | 307/350 | N/A | 75cc | N/A |
3998993 | 72-73 | 307/350 | N/A | 75cc | N/A |
3998997 | 72-73 | 350/400 | N/A | 76cc | 76cc chambers |
3999241 | 72 | 402/454 | 2.06/1.77 | 113cc | Oval port |
4079261 | 75 | 350 | N/A | N/A | N/A |
6258723 | 71 | 454 | 2.19/1.88 | 118cc | LS-6 Rectangular port |
6259425 | 68-76 | 350 | N/A | N/A | 2-bolt |
6259515 | 73 | 350 | N/A | N/A | N/A |
6260855 | 73-75 | 350 | 1.94/1.50 | 76cc | N/A |
6260856 | 73-76 | 350 | 1.94/1.50 | 76cc | N/A |
6272070 | 73 | 350 | N/A | N/A | N/A |
6272292 | 71 | 402/454 | 2.06/1.77 | N/A | Open chamber Oval port |
6272990 | 71-94 | 454 | 2.19/1.88 | 118cc | Replacement Rectangular port 325cc intake |
10033867 | N/A | N/A | N/A | 62cc | Aluminum, over-the-counter Pontiac 23′ head, angle plug, 196cc intake port |
10045427 | N/A | N/A | N/A | N/A | Pontiac/Chevy Aluminum, 91cc chamber Large Rectangle Port |
10045434 | N/A | N/A | N/A | 55cc | Aluminum, Over the counter Pontiac 15′ head, angle plug, raised runner, “rollover” head |
10049875 | N/A | N/A | N/A | N/A | Pontiac/Chevy Aluminum Small Rectangle port |
10051101 | N/A | N/A | N/A | 55cc | Aluminum, Bowtie, angle plug, raised runner, 196cc intake port |
10051128 | 90-94 | 454 | 2.19/1.88 | 72cc | Bowtie Aluminum Rectangular port 400cc intake |
10052902 | 427 | N/A | N/A | Oval Port Open chamber | |
10065202 | 87-95 | 350 | N/A | N/A | Truck |
10065203 | 87-95 | 350 | N/A | N/A | Truck |
10065204 | 87-95 | 350 | N/A | N/A | N/A |
10065205 | 87-95 | 305 | N/A | N/A | N/A |
10065206 | 87-95 | 350 | N/A | N/A | N/A |
10065207 | 87-95 | 305 | N/A | N/A | N/A |
10088113 | 88-up | 350 | 194/1.50 | 58cc | Aluminum, angle plug, raised “D” port exhaust |
10093328 | N/A | N/A | N/A | 61cc | Aluminum, Over the counter Pontiac 15′ head, 224cc ports, “roll over” head |
10101136 | 91-94 | 454 | 2.06/1.77 | N/A | Open chamber Oval port |
10101140 | 91-01 | 366/427 | N/A | N/A | Oval Port Closed chamber |
10106178 | 90 | 350 | N/A | N/A | Aluminum, LT5, ZR1, DOHC, 32-Valve, pass. Side. |
10106179 | 90 | 350 | N/A | N/A | Aluminum, LT5, ZR1, DOHC, 32-Valve, drivers Side. |
10110810 | 91-up | 350 | N/A | 65cc | Gen. 1 |
10114156 | 91-01 | 454 | N/A | N/A | Oval Port Open chamber |
10120928 | 87-95 | 350 | N/A | N/A | N/A |
10121033 | 78-88 | 454 | 2.06/1.77 | N/A | Open chamber Oval port |