ok i am doing a turbo motor build and my motor shop wants me to get part#s for are the non stock parts. i chose to go with the callies 90mm stroker crank and wanted to know what specs the rods need to meet work with that crank? and does the the crank effect which pistons i use? the last question is a little of topic i was lookng threw the ARP catalog and there was no mention of the 420a eclipse will the dohc neon head studs work in our head?