4G63 (DOHC 16 Valve) 2L 4 Cyl
4G63 (SOHC 16 Valve) 2L 4 Cyl
4G63 Turbo Mitsubishi Performance 2L 4 Cyl

Mitsubishi Express SJ (78/83Kw) 1994 - 2006 2L
Mitsubishi Galant HG 1988 - 1990 2L
Mitsubishi Galant HH 1990 - 1993 2L
Mitsubishi Galant HJ (90Kw) 1993 - 1995 2L
Mitsubishi RVR N13/N23 1992 - 1997 2L
Mitsubishi Starwagon SJ (85kW) 1997 - 2001 2L
Mitsubishi Starwagon WA (78/85kW) 1994 - 2003 2L
Mitsubishi Various TBA - TBA 2L

History & Background on ARP®
They say that to be successful you must identify a need and satisfy it. Back the early 1970s, racing enthusiast Gary Holzapfel saw that many of his friends’ broken engines were caused by fastener failure.

At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called upon his many years of fastener making experience for a leading aerospace subcontractor and founded ARP (Automotive Racing Products).

In the ensuing years, the firm has grown from what was literally a backyard garage workshop into a highly diversified manufacturer with seven operational entities in Southern California with a combined area in excess of 200,000 square feet. These include forging, heat-treating, machining, quality control finishing and packaging/warehousing facilities in Santa Paula and Ventura, California.

There is even a unique racing-themed restaurant at the main Santa Paula facility - called “ Hozy’s Grill” - which is open to the public.

Today, ARP’s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.

For Engine(s): 4G63 (DOHC 16 Valve),4G63 (SOHC 16 Valve),4G63 Turbo Mitsubishi Performance
Head stud kit (pro series 200000 psi 12-point head)
OD 11mm