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Old 01-20-2012, 05:37 PM
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flat top pistons

i just purchased a rebuilt sbc motor 350 that has flat top pistons and cam.why flat top over dome what is the difference and how does that help or hender. thanks
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Old 01-20-2012, 05:40 PM
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Domes are a necessary evil for most big-block Chevys. For the SBC, they have nothing to offer. Domes add weight and hinder flame propagation. They also contribute to pistons rocking in the bores. Be glad you don't have them, choose heads accordingly.
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Old 01-20-2012, 05:41 PM
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flat top pistons promote "flame travel" and more complete combustion.
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Old 01-20-2012, 05:50 PM
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heads

it came already built.30 over flat tops 4 bolt main small cam??
thanks
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Old 01-20-2012, 05:52 PM
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Quote:
Originally Posted by whyholdback
For the SBC, they have nothing to offer. Domes add weight and hinder flame propagation. They also contribute to pistons rocking in the bores. Be glad you don't have them, choose heads accordingly.
Nonsense. There are huge benefits to domed pistons in a small block for some setups, blanket statements like this are misleading. The OP needs to take that with a huge grain of salt!
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