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When is it needed for a 440...using the factory caps? The caps also need to be align-honed,after installed...am I correct? I was advised by an engine builder/machinist to make the switch..since adding a possible 90-100 horsepower with recent headwork. What is the concensus on this? Thanks in advance!


What kind of maximum power will te motor make with the new heads? If less than 600 HP don't worry about it I have switch from main bolts to ARP main studs and didn't have the mains aligned honed, I did measure the main bore size before and after with a inside mike to see if it changed, it didn't


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)