1972vettman

I've got a question concerning serial numbers: The engine (350) block and and right side head are matching numbers for my 72, but the left head has a serial number that I cannot find.
The serial number is 373487x GM44 I71, anyone have any ideas what this head may have come from (car)?

Alan 71

Hi 72v,
I don't see that number either.
The info I have is just for Corvettes so it's not very extensive.
I did notice that casting numbers beginning with 37....seem to have stopped in 63-64.
Hopefully someone else will be able to help you figure out what you have.
Regards,
Alan

Mike Ward

Sure it's not 3973487? Pretty common heads in the early 70s.

1972vettman

Yes, the right side is the 3973487

VonB

3973487X = 350cui 1971-72 75cc chamber
I71 = September 7. 1971

I have to off those on my 72 although mine is date coded M78

VonB

Jack Wood

I'll bet it's probably a 3973487X from a '71-'72 350ci with 75cc chambers. Look closer.