Replace your stock head bolts with ARP heavy duty head studs. The stud design helps the head and the block equalize the pressure better thereby creating a much more even and consistent seal. It is recommended to replace the head studs/bolts with a new set if the head bolts are ever loosened due to metal fatique. Reusing an old and possibly warped or stretched head bolts/studs will sacrifice the seal between the head and block and may cause head gasket leak. This is a great an easy upgrade when doing an engine rebuild or building a race motor.

• Studs are made from the higher quality "ARP 2000" grade bolts.  Unlike the lower priced kit which are made form the lower grade material.

Vehicle Applications

• 1995 - 1998 Nissan 240SX (S14) L4 2.4L KA24DE
• 1991 - 1994 Nissan 240SX (S13) L4 2.4L KA24DE