hey im looking for some good 20r/22r machine shops around portland. i am also needing help with what is a safe number to bore over a 22r and a 20r if anyone could help me out that would be great

 

sorry , cant halp with the machine shop .. but I do know a safe oversize limit is 40 thou. ...... max I would recommend .. at this point coolant passages become very thin ... Personally , I wouldnt go more the 30 thou.



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since you are in Sandy call these guys:
http://oregonengines.net/

or try contacting ted:
http://www.engnbldr.com/
he is in PDX

 

thanks for your help guys im going tomorrow to shop around for a machines