Cylinder Head Stud Kit for Subaru EJ Series DOHC ARP2000

Cylinder Head Stud Kit for Subaru EJ Series DOHC ARP2000It is for good reason that virtually every top professional enginebuilder relies on ARP Pro Series head studs for their all out competitionpowerplants. Simply stated, theres not a better stud setupon the market today. For openers, ARP only uses premium grade 8740 alloy anda proprietary ARP2000 alloy that are rated far superior to aircraftquality alloy steels. Secondly, each stud is placed verticallyinto special racks and precisely heat treated to

Both models feature a large diameter

000 psi tensilestrength material and proprietary (ARP2000®) 220

ARP has you covered with our 180

L19 is a very high strength material compared to 8740 and ARP2000 and is capable of delivering a clamp load at 260

The studs are manufactured from 8740 chrome moly steel

That’s whythe fastener experts at ARP have developed special bolts that are far superior to OEM hardware

You’ll find ARP Perma-Loc’s easy to use

All Pro Series head bolts have areduced wrenching hex or 12-point head and wide area flange to permit the use of larger diameter valve springs and eliminate the need for valve train removal during cylinder head retorquing

Cycle testing hows ARP High Performance rod bolts to be nearly five times more reliable than stock bolts

J-form thread rolling after heat-treat and a special profile

Complete with washers and nuts where applicable

All Pro Series head bolts have areduced wrenching hex or 12-point head and wide area flange to permit the use of larger diameter valve springs and eliminate theneed for valve train removal during cylinder head retorquing