Right now it boils down to the heads do I trust what I have or buy new ones if these would work I may consider the stroker I don't know how to check them or anybody that can for how much have been milled plus may be tossing away $$ to find out Believe me I know this but when do you stop not too much more or while I'm at it might as well been there done that more times than I care to think about -- thanks for all your input