Thread: What exactly do I have?

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I have a motor, the numbers I can find on it are as follows,

(on the back of engine)
3963512
CONV 1

K5 9

and on the back of it behind the flywheel it says

pass

hi perf

I was told it was a 427 from a 69 corvette.... who knows what it really is???

3963512....454.......70-76...2 or 4 bolt

3963512 was used in the 427 in 1969 in both 2 and 4 bolt configurations. It was also used from 1970-1976 for 454 (as referenced above) in 2 and 4 bolt.

So - you may have the straight skinny, i.e., 1969 Corvette.

Post the numbers on the pad in front of the passenger side head.

Something like T0215XX

May have a three character suffix but a '69 Corvette will start with L or M and be two characters.

1000 hp New GM LS 10 dont I wish! Good luck,No idea