Scat Pro Comp series I-beam stroker clearanced connecting rods. BBC 396-454 applications made of 4340 forged steel, 6.385″ length, bronze .990″ I.D. bushed small end, 2.200″ crank pin. ARP 8740 7/16″cap screws, rod weight 785 grams and big end width .992″ rated for up to 7500 rpms and 700hp. Piston assembly weight (piston, rings, pins & locks total 530 grams.) Please e-mail with questions.