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how can i get a est. of the compression on this motor with taking off the head? i talked with the company today, they do not have build sheet , the guy sd they wld not have put lower than 9 to 1 he says this engine most likley 9.5 to 1 which wld be okay for me,



Sorry, but they are full of it ... PULL the head, it's not that big a deal.

JD , I can't remember ever seeing a dished 440 piston other than a lightweight forged piece. instead of using a dish Chrysler just lowered the piston in the hole, but did the aftermarket make a cast dish piston ?