These billet 4140 main caps are what you need to strengthen your block and make some serious horsepower! Recommended to be used in conjunction with an ARP stud kit. Machining is available to allow re-fitting of OEM crank scraper when using an ARP stud kit- a VSP exclusive! This machining option includes machining the caps, as well as a new crank scraper for the engine which has been modified. Original crank scraper must be returned as a core.
NOTE: Installation requires boring and line honing the block. Cap Machining option requires the use of an ARP Main Stud Kit.
Available Options:
Crank Scraper Machining:
