Thread: NOS LS-7 Crate Engine 454/465HP Never Used
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Old 03-15-2012, 12:01 AM
SuperNovaSS SuperNovaSS is offline
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Default Re: NOS LS-7 Crate Engine 454/465HP Never Used
OK, I went and bought and inspection camera/borescope at Costco. Quite a deal I think at $150. It takes video and pictures and came with everything to operate. Fun toy!

Anyway, the piston number is 3963551 which comes up as 12.25:1, first used in the 1970 LS-7 engine.



From GM Parts Direct Website:


3976014 High Performance Piston
This 454 standard, pressed pin, high performance piston has a 12.25:1 compression ratio and an open dome. (ID#3963551 or 3976032). Used in engine assemply P/N 3965774.


Thanks,

Jason
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