R & R SBC aluminum rods ,6" .927 pin and 2.100" big end , Wiseco SBC nitrous for 4.155" bore. build sheet for pistons I have. Heavy duty coated wrist pins , Thes only have 15 1/8 mile passes on ! They are in great shape, 8 of each. $700 rods and $700 pistons.. I went back to N/A motor, car cannot handle nitrous power