Originally Posted by shortyems3307

i have always used stock length rods and crank but sevral years ago i bought a rotating assembly with a gm steel 454 crank that had the rods machined to 2.100 and was offset ground. it has bill miller aluminum rods and 4.560 venolia pistons. i have a bowtie IV block 4.560 bore. i want to replace the rotating assembly with new and i can't decide which stroke to go with. 4.25 or 4.50 or ?? i just don't have that much knowlege on which set up has more or less trouble with the added stroke. i would appreciate any imput. thanks matt