Compression Ratio

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I have purchased a set of Boss close chambered heads.I've had them compleatly gone over,SS valves,roller rockers,Tef oil seals,3/8 pushrods,all new springs and retainers.Well after everything was said and done I found out the heads were milled .040.I had to mill the intake to get it seat correctly.I have TRW flat top 8.5 to 1 pistons.My question is anyone dare to guess what my comp ratio is? The heads were installed and the car runs GREAT. Will I have any problems down the road?Thanks for you're help.... PS The chamber volume is 62cc.

4/3/025:06 AM

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marlinjackThe Machinist #5723 AMARGOSA MACHINE 'Running on Empty- Middle of Nowhere'

YOUR COMPRESSION RATIO IS: 10.50 TO 1 TO 11.1 TO 1 . YOU CAN LOWER IT SLIGHTLY BY USING THICKER OR TWO HEAD GASKETS OR/AND A CAMSHAFT WITH LONGER DURATION(SUBTRACTS FROM STATIC COMPRESSION RATIO). REGARDS, MARLIN.

4/3/025:39 AM

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rmccallMember

I use TRW f/t pistons in my car.With closed chamber heads and .020 off of the deck I have no problem with 92 octane fuel.(heat or detonation)I assume my compression ratio is close to yours.(.020 deck vs..040 heads)

4/3/022:35 PM

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