Press fit style wrist pin bore allows for use of economical press pin pistons 2.100" large journal size fits 1968 and newer small block Chevy applications 5.7" center-to-center length is stock length for 350 cubic inch and smaller engines OE Rods reconditioned to factory specs. Set of (8) Stock small block 1968-95 Chevy stock replacement reconditioned connecting rods compatible with 1968 Up small block 305 350 307 & 327 (large journal). Rods are 5.7" center-to-center length 2.100" main journal size.