ARP

This 11mm performance head stud kit from RCM replaces the standard cylinder head bolts on Subaru EJ-series engines. Made from S99 steel with a manufacturer-stated minimum yield strength of 1080 MPa, supplied with ARP nuts, washers and RCM assembly lubricant.

SKU: RCM1635

Xtreme H-Section connecting rod (1mm shorter), manufactured by Arrow Precision from EN24 alloy steel and rated by Arrow Precision for 600bhp and above. Typically paired with a 79mm-stroke crankshaft for increased capacity and torque. Supplied with ARP bolts and assembly lube.

SKU: RCM2408

Xtreme H-Section connecting rod (1mm longer), manufactured by Arrow Precision from EN24 alloy steel and rated by Arrow Precision for 600bhp and above. Typically paired with a 75mm-stroke crankshaft for a smaller conrod angle and higher-revving engine. Supplied with ARP bolts and assembly lube.

SKU: RCM2409

Xtreme H-Section connecting rod manufactured by Arrow Precision from EN24 alloy steel and rated by Arrow Precision for 600bhp and above. Ultrasonically tested, crack-detected and balanced to within a gram. Supplied with ARP bolts and assembly lube.

SKU: RCM2407

RCM alloy/steel vernier camshaft pulley set for adjusting exhaust cam timing on 2001-2007 Subaru STI (V7-V9) engines. Anodised black alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts.

SKU: RCM1060

RCM alloy/steel vernier camshaft pulley set, listed for Subaru Impreza GC8/GF8 (1999-2001). Anodised black alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts. Please confirm exact model fitment before ordering.

SKU: RCM1058

RCM alloy/steel vernier camshaft pulley set for Subaru Impreza 1996-1998 (V3-V4). Anodised red alloy outer with a stainless steel inner hub, laser-etched timing markings and a one-piece belt guide. Supplied with ARP high-strength bolts.

SKU: RCM1056

RCM Street Spec forged 4340-steel connecting rod set, positioned between OE and the Arrow H-Section rods and rated by RCM up to 400bhp. Weight-matched to within 1.5g and supplied with 3/8in ARP 2000 fasteners. Not recommended for sequential or flat-shift gearboxes.

SKU: RCM2714

This Superstud head stud kit from RCM (14mm/14mm) uses a larger 9/16″ diameter stud made from aircraft-grade S99 steel for Subaru EJ-series engines. Supplied with 12x ARP 9/16″ 8740 chromoly nuts and washers and compatible with RCM head gaskets.

SKU: RCM2902

This Superstud head stud kit from RCM (14mm/12mm) is made from aircraft-grade S99 steel for Subaru EJ-series engines. Supplied with 12x ARP M12x1.25 8740 chromoly nuts and washers and compatible with RCM head gaskets.

SKU: RCM2903