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Quote:
Originally Posted by wensum
I have an alloy Winfield head, supposedly 7:1, but I had to get it machined to ensure piston clearance (rather than dismantle, machine the pistons and then get the motor re-balanced)
Also I had to get the combustion chamber relieved to clear larger inlet valves, so I guess the compression ratio has been reduced a tad, but I've no idea how much.
At this stage, there's little point in worrying about the compression ratio?
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If the head is still off, its not that hard to check. If its together and running OK, then I agree, no real point in checking it now.
This sort of thing ( machining, clearancing, etc.) is why I said you have to check it to know for sure.
Good Luck to all.