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9:8:1 mahle cylinders
I have a 78 911 that I am doing a top end rebuild on due to a broken head stud. I currently have alusil pistons and cylinders and am considering buying a set of mahle p/c. The stock compression ratio on my car is 8:5:1. I am noticing a lot of the mahle sets have a 9:8:1 compression ratio. Is the CR ok to use on my setup or should I stick to the original CR of 8:5:1. I plan on having my cams regrind to 964 specs. Thanks.
Lou
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