1965 426 wedge

[Steve Stasko]

Originally Posted by GTX JOHN

I thought they only used the block castings ten
times 10 times before retiring them but that was a longtime
ago.

I've never seen a big block with a higher number than 10. The only one I ever had trouble with was a '65 -1 casting 440 out of an Imperial. It was stress cracked all through the lifter valley.