Spool - 1JZ/2JZ Drag Pro I Beam Conrods

Spool Drag Pro I Beam Conrods All Spool Drag Pro Conrods come standard with 7/16 ARP 2000 Fasteners Spool Drag Pro I Beam connecting rods are designed to handle the most extreme punishment from Toyota JZ engines, featuring upgraded ARP2000 7/16 bolts, increased strength to the beam, around the fasteners/bolts, and around the gudgeon pin. These conrods are made of high tensile 4340 forged steel in a 2-piece forging, with a hardness of HRC36-42, dowelled caps for precision alignment, X-RAY & Sonic tested, quenching and heat treated, shot peened, 100% Magnafluxed, weight matched sets + - 1 gram, vacuum degassed to remove impurities, and side oil squirters. ARP L19 bolt upgrade option available. No bearings are included.