First timer here so expect some rookie moves. I have a brand new M code 4.49 bore hemi block and all the peripherals parts to build it except for the pistons. My goal is to build a great smooth running street hemi with 9.4:1 compression that purrs like a kitten. It has a factory 3.75" stroke Eagle crank and stock length Eagle rods, A Mr Six Pac hemi cam and lifters, mopar performance heads and factory spec rocker arm assembly. I am trying to determine what type of piston to go with or if I should change this config because most of the time the 4.5 bore blocks go to build a 528 or 572 based on stroke length of 4.14 to 4.5. I would sincerely appreciate some coaching here from folks who have experience with building or setting up great smooth running street engines.

Thanks and Merry Christmas from moparmatthews