ARP Pro Series Cylinder Head Studs 233-4507 Air Filtration / Air Scoops & Plenums This piston set is forged

This piston set is forged from 2618 T6 high tensile strength aluminium and is engineered for high horsepower Subaru engines

Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading

and feature stainless steel outer shell construction for maximum durability

While it is compatible with all MSD boxes

ARP Pro Series Cylinder Head Studs 233-4507 Air Filtration / Air Scoops & Plenums This piston set is forgedBrand: ARP Manufacturer's Part Number: 233 4507 Part Type: Cylinder Head Fasteners Product Line: ARP Pro Series Cylinder Head Studs Automotive Fittings Part Number: ARP 233 4507 UPC: 672036008635 Fastener Style: Stud Undercut Stud: Yes Head Style: Hex Fastener Material: 8740 chromoly Fastener Color: Black Washers Included: Yes Quantity: Sold as a kit. Description: ARP Pro Series cylinder head studs are cold forged to ensure molecular integrity.