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#1
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1968 number 14 heads
What's the ball park figure on the combustion chamber volume? A guy has a set for sale near me
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#2
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90cc
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#3
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That casting is the 2bbl 400 head which was rated at 265 Hp .
The head is about 90 CCs and on a 400 gave a actual like 8.4 comp. Bolted to a stock 421 you end up with a compression in the neighborhood of 8.7. Flow wise they are better then the stock 421 heads. These heads are 1.96” intake and 1.66” exh with pressed in rocker studs. On a 421 you would need the 400 length push rods . With stock 421 pistons you could not run and more then about .450” lift depending on the cam duration.
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