These are a H Beam 4340 con rod to suit the Toyota 1HD and come with ARP2000 7/16 fasteners and 33mm pin. They are perfect for when upgrading your 1HZ to turbo. Use these upgraded rods with our custom piston option. These conrods feature: High tensile 4340 forged steel 2 Piece forging 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. No bearings are included! We have customers making over 1000 RWHP with Spool Conrods.
