slant 6 head shave

roccodart440 said

I have read that .090 is the max and by cutting .090 off you raise the static CR 1 point. THis would bring the CR to 9.5:1 or 10.0:1 depending on the year slant 6 you have.

I would like to know the max cut you can take on these engines as well. What is the limiting factor?

Click to expand...

I dont know where your info came from or how it was determined but in my opinion it is faulty.
Most slant 6 198/225 engines have the piston .185 in the hole. add a .020 steel shim gasket and 60cc heads and plug that into a calculator. Most slants have 7.5-8 to 1 actual compression. Advertised was about 8.4 to 1. Throw your .038 Composite gasket of your choice ( I use the Permaseal Brand that I sell) and the compression is even worse. I think about .007 is 1 cc so do your math.
Frank