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Old 04-05-2012, 11:39 AM
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starnest starnest is offline

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Originally Posted by
The oval port head will hit the pistons on the exhaust side at the deck and outer edge of the dome.
I have the KB (25CC) domed pistons with 820 heads (the heads have the larger (rect port) valves w/machining to unshroud). When I assembled, the outer edge of the dome did hit inside the chamber (not the deck); which I clearanced with quite some effort. (I worked until they cleared w/o head gasket - this gives me plenty of clearance when installed with regular .041 compressed gaskets).

Bowtie - with 10.8 DCR, you will have big problems running pump gas.
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