Bensshee Posted November 2, 2003 Report Share Posted November 2, 2003 If i change my crank from a plus 4mm to a plus 10mm do I have to modify my port job or can I just use a different size spacer plate? Also has anyone trenched there own cases for a plus 10mm and how did you do it? Quote Link to comment Share on other sites More sharing options...
NYUK Posted November 2, 2003 Report Share Posted November 2, 2003 what your talking about is a radical difference in port timings,i don t think a spacer plate will work.trenching cases is a job for a machinist,not something that can be done in the garage. Quote Link to comment Share on other sites More sharing options...
Bensshee Posted November 3, 2003 Author Report Share Posted November 3, 2003 Would the gain in performance be worth all the work and money? Quote Link to comment Share on other sites More sharing options...
MULLET~BOY Posted November 4, 2003 Report Share Posted November 4, 2003 yes it would be but depending on how drastic your porting is you might need to start with new cylinders Quote Link to comment Share on other sites More sharing options...
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