ARP crankshaft main studs in 8740 steel for the Opel and Vauxhall C25XE 2.5 litre V6.Brand: ARP Engines: Opel and Vauxhall C25XE (2.5 litre V6) Thread: M10 Grade: 8740 steel
The Opel and Vauxhall C25XE, the 2.5 litre V6 of the Calibra, Vectra A and Cavalier. This page covers the ARP main stud kit for the main bearing caps of the engine, with its tightening order, its hardware and the engines it fits.