ARP Subaru WRX EJ20 & EJ25 Head Stud Kit

ARP head stud kits for internal engine builds are stocked at Black Ops Auto Works. Shop ARP head stud and bolt kits, main stud kits, and rod bolt kits engineered for HEMI, Ford Modular and Coyote, GM LS, Subaru EJ, Honda K and B series, VW/Audi turbo four cylinders, Porsche, BMC, and Renault engines, along with the Ultra-Torque assembly lubricant every kit depends on. Every product is filterable by year, make, model, and engine platform so the correct fastener kit ships the first time. Black Ops Auto Works carries 812 ARP Head Studs SKUs across 8740 chromoly and ARP2000 alloy options. What This Collection Covers ARP head studs replace factory head bolts with precision-machined threaded studs that thread into the block and allow the nut to be torqued concentrically on a stationary fastener, producing more even and repeatable clamping force across the entire head gasket surface than a factory head bolt design. This collection focuses on the internal engine fasteners that hold the ...

Cylinder head components and engine internals for performance builds and OE service are stocked at Black Ops Auto Works. Shop complete cylinder heads, head gaskets, head stud and bolt kits, rocker arms, lifters, camshaft and lifter kits, rotating assemblies, and main stud and bolt kits for LS, LT, HEMI 5.7/6.1/6.4, Coyote, Cummins, Powerstroke, VW/Audi turbo, Subaru, Nissan, and import platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 972 Head Components SKUs across component type, engine platform, and bore or gasket specification. What This Collection Covers Head Components groups together the parts that live at and around the cylinder head, the area of the engine most affected by heat, combustion pressure, and clamping load. This includes complete heads, head gaskets, head studs and bolts, rocker arms, lifters, camshaft and lifter kits, main stud and bolt kits, and ro...

Head Stud and Bolt Kits for LS, Gen III Hemi, Coyote and Ford Modular, Toyota 2JZ, Nissan RB26, Subaru EJ, Honda K-series, Mitsubishi 4G63, VW 1.8T, and Power Stroke applications are stocked at Black Ops Auto Works. Shop ARP head studs, head bolts, L19 studs, Custom Age 625+ studs, Pro Series hardware, cylinder head fasteners, MLS gasket support, and boosted engine hardware for proven street, drag, road course, and high horsepower engine builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 199 head stud and bolt SKUs across the fitments and build levels enthusiasts actually use. What Head Stud and Bolt Kits Cover This collection includes cylinder head stud kits, head bolt kits, nuts, washers, and high-strength fastening solutions for stock rebuilds, boosted street engines, race engines, and diesel performance applications. The correct fastener supports reliable head gasket cl...