Identifying Chevy engines
m |
m (→Mortec SBC head casting numbers) |
||
| Line 421: | Line 421: | ||
3973370....69-70...350..........Over the counter in US, | 3973370....69-70...350..........Over the counter in US, | ||
Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug | Canadian 350/300hp production use in Pontiac, 64cc, straight or angle plug | ||
| − | 3973414....70......350.......... | + | 3973414....70......350..........LT-1 350/370hp, camel hump, 64cc chamber |
3973487....71-72...350..........1.94”/1.5” or 2.02”/1.6” valves, was also used | 3973487....71-72...350..........1.94”/1.5” or 2.02”/1.6” valves, was also used | ||
| − | on '71 350/330hp | + | on '71 350/330hp LT-1, 75cc chamber |
3973487X...71-72...350..........1.94”/1.5” or 2.02”/1.6” valves, 75cc chamber | 3973487X...71-72...350..........1.94”/1.5” or 2.02”/1.6” valves, 75cc chamber | ||
3973493....71-72...400..........76cc chamber | 3973493....71-72...400..........76cc chamber | ||
| Line 432: | Line 432: | ||
3986339X...71......307/350......74cc chamber | 3986339X...71......307/350......74cc chamber | ||
3986388....68-76...307/350 | 3986388....68-76...307/350 | ||
| − | 3991492....70......350.......... | + | 3991492....70......350..........LT-1, camel hump, accessory holes, 64cc, |
straight plug | straight plug | ||
3991492....70-up................Over the counter, camel hump, 64cc, straight | 3991492....70-up................Over the counter, camel hump, 64cc, straight | ||
or angle plug | or angle plug | ||
| − | 3998916....72......350..........Also used w/'72 350 | + | 3998916....72......350..........Also used w/'72 350 LT-1, big valves, screw |
in studs, 76cc chamber | in studs, 76cc chamber | ||
3998920....72-73...350 | 3998920....72-73...350 | ||
| Line 494: | Line 494: | ||
10207643...94-96...350..........Gen. 2 LT1, aluminum, reverse flow cooling, | 10207643...94-96...350..........Gen. 2 LT1, aluminum, reverse flow cooling, | ||
175cc/68cc port volumes | 175cc/68cc port volumes | ||
| − | 10208890...94-96...265..........Gen. 2, L99, 4.3 Liter V8, cast iron, | + | 10208890...94-96...265..........Gen. 2, L99 aka "baby LT1", 4.3 Liter V8, cast iron, |
reverse flow | reverse flow | ||
10215339...97......350..........Gen. 3, LS1, aluminum, 68cc | 10215339...97......350..........Gen. 3, LS1, aluminum, 68cc | ||
| Line 515: | Line 515: | ||
12509859...87-94...305 | 12509859...87-94...305 | ||
12516852...87-95...350 | 12516852...87-95...350 | ||
| − | 12529742...95-96...265..........Gen. 2, "L99", cast iron | + | 12529742...95-96...265..........Gen. 2, "L99" aka "baby LT1", cast iron |
12551561...96......350..........Gen. 2, "LT1", aluminum | 12551561...96......350..........Gen. 2, "LT1", aluminum | ||
12552520...97-up...305..........Vortec, truck | 12552520...97-up...305..........Vortec, truck | ||
| Line 521: | Line 521: | ||
used on "9C1" police package, Impala SS, | used on "9C1" police package, Impala SS, | ||
Cadillac Fleetwood, Buick Roadmaster, reverse flow cooling | Cadillac Fleetwood, Buick Roadmaster, reverse flow cooling | ||
| − | 12554291...95-96...265..........Gen. 2, "L99", cast iron | + | 12554291...95-96...265..........Gen. 2, "L99" aka "baby LT1", cast iron |
12555690...96......350..........Gen. 2, "LT4", aluminum | 12555690...96......350..........Gen. 2, "LT4", aluminum | ||
12556743...99......325..........Gen. 3, 5.3L, aluminum, truck, van | 12556743...99......325..........Gen. 3, 5.3L, aluminum, truck, van | ||
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