Quote:
Originally Posted by Captainfab
A 4 valve relief piston is the standard configuration. That way the pistons will fit either side of the engine. Those pistons look to be dished to me. A set of heads with 64cc chambers and a thinner head gasket would help.
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Yep these are slightly dished. Not stock right?
I can post up a better pic but these pistons have approx 1/4" wide crown and a 0.065" dish to them.