Originally posted by CHAHONDA
well...say for example you want to build a 350 chevrolet motor. stock they have a 5.7 inch rod. lets say you want to use a 6 inch rod and still have a reasonable c/r. if you look in jegs or summit you will see pistons that are designed specifically for that application. hence the revised pin location. the reason for the longer rods is to slow down the piston speed and to keep the piston at top dead center longer!! make any sense???
Exactly... yea, what he said, lol. The pin placement does change, most of the time Olds guys use a Pontiac pistion with Chevy rods on a stroked steel crank with 2" "big ends" on the rods and little ends for the Pontiac pistons. The rod/stroke ratio is made alot better and generally the quench in the chamber is better too.