All Spool Conrods come standard with ARP 2000 Fasteners. These are a direct fit conrod for all Nissan / Holden RB30 engines. There is no machining of any sort required. They suit RB30 NA, RB30 Turbo and RB30 engines with RB25 or RB26 heads fitted. 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. Bearings can be added at additional cost. Specifications: Small End Pin Size: 21mm Weight:598g (Std OEM conrods weigh 702g
