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Thread: 454 build up
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Old 08-23-2012, 05:04 AM
454C10 454C10 is offline
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I run a set of 781's on my 454 and they are 120cc. So, I didn't need to look it up in this case. I also use a small dome to get it up to 8.75:1. Flat tops are the stock smogger piston in a 454.

I also have a set of 820's from a 73 402, and they measure 112cc. These are also good heads that would increase the compression in a flat top 454.

I heard the votec head will work on old BBC blocks, but I have no experience with those. I also read they are good heads and the low engine output from vortec 454 is due to the poor cam and intake.
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