Quote:
Originally Posted by Gary H
When you say they are good heavy castings, are you referring to the block or heads, or both? I didn't know the blocks were different from the 1 bbl one.
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Referring to the blocks. 61-62 blocks are flat across area where head mounts to the block on front side. There is also a transfer lug on left side of the block. 61-62s are nearly 3/8" thick, some late 62 and 63s are much thinner in the same area. I believe the early block also have a higher nickel content? The heads are just run of the mill 389 stuff.