Upgrade to the stock oiling system, delivering increased oil pressure and return scavenging volumes from billet oil pump and matched camplateCamplate pressure relief valve and spring are seated, sealed and pre-set with 50-60 psi pop offIncreased rigidity by machining to tighter tolerances compared to stockAdded oil pressure feed holes to front and back of cam journals to prevent excessive thrusting wearAdded cam journal oil groove for cold startup protection and increased cam journal lubricationOE+ oil pumps assemble without O-rings on the pump housings, similar to the Factory and SE® oil pumpsKit includes OE+® billet oil pump, matched OE+® camplate, bearing retainer plate, and hardwareMade in the USA