Thread: compression issues

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i agree that the piston is where the answer lies. The head gasket approach would really mess up my quench area. Today I am going to assemble and cc for a true net chamber volume. Then I am going to see what I can do about the piston to help out. possibly I can work something out with the machine shop and just bite the bullet for a little more money and time.
I would really be interested for more info on why the heads with the same casting number have different chamber volumes.

If the pistons can be cut down as flat tops the SCR would then be 10.48. According to the calculator I found last night the DCR would then be 8.35. the calculator used the advertised measurements and calculated seat times. What do you guys think?
Sure would be a good question for tech. I have been using the search feature and have gotten a lot of good info. I have not found an "established" limit on the DCR. I know it depends on a lot of the characteristics of my motor but it is always nice to have a basic target in mind.