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Old 01-20-2008, 07:48 AM
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onebadmerc onebadmerc is offline
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If your pistons will permit it, mill the domes down as far as they will go. Then install a thicker head gasket. I wouldn't bolt on a set of larger cc heads with domed pistons. Yes, it would lower the compression ratio but it would also increase the surface area being exposed to more heat. Dome pistons are not the best pistons to use on pump gas, they have lots of spots on them that that get hot. A flat top piston will disperse the heat more evenly, being less prone to hot spot and detonation. You can also install aluminum heads which will allow you to run more compression, but keep them at 64cc's. Even if you install aluminum heads you will still need to get the pistons domes down or find some flat tops.
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