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well thats gonna suck if thats the case lol.i hope there is no dish but im not gonna count on it or find some std bore 4 barrel pistons

Go to KB pistons web site, United Machine, AKA Slvolite piston company and look up the proper pistons (with quench )you need to get right at 9.5 to 1 or lower compression ratio for pump gas use with the the "452"iron heads BTW, don't count on finding any decent used standard bore pistons, buy new ones of the proper oversize to fit your block after you have it rough bored to find out what size you will need to do it right

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