Tom,
There were 2 HiPo 289's. One a 5 bolt C3OE-B, C4OE-B casting ('63, '64)
The 6 bolt HiPo's casting number was C5AE-E ('65-'68)
Other "tell-tales on inside of block (thicker main bearing cap, color
splash orange on rear of block) and timing chain gear has extra weight
and thinner chain. The rest of the weight was in that thick harmonic
balancer you seem to be missing.
Anything else, ain't.
Steve
--
Steve Laifman < Find out what is most >
B9472289 < important in your life >
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