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Discussion Starter #1
I got a k24a4 with a stock bottom end with a 9:7:1 compression ratio stock. The head is milled .25 thousands , now what do you think it is around ?
 

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Discussion Starter #2
bump
 

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Make sure you do not have any contact between the piston and valves at full cam advance by claying the engine.
 

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Discussion Starter #5
its a stock k24a4 bottom end not sure the stoke but I believe the bore is 87mm, the previoss
builder had removed the middle layer of the 3 layer oem gasket and said that it was 35 thousands total removed from the head including the gasket , after I installed a new oem 3 layer head gasket the car runs excellent , although it seems like with this new knox sensor car seems like it wants some race gas slight knox occasionaly
 

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You don't get more than 9.74:1


I make the math ...
 
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