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ARP
ARP Main Bolts
ARP Main Bolts
  ARP Main Bolt Kits - Pro Series
MG/Mitsubishi/Porsche/Subaru/Toyota

Far superior to any other main bolt kit offered for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly, all bolts feature generous under-head radius and rolled threads for the utmost reliability. The threads are rolled after heat-treating, which makes them about 1000% longer fatigue life than most main bolts, which are threaded prior to heat-treating.

Available in 200,000 psi nominal rated Pro Series, application-specific main bolts with reduced wrenching head and are designed for use in competition applications.

INCLUDED: Parallel-ground, hardened washers are included with each kit.
Make Application Part # Price Buy Now
MGB 2 Cap Main 206-5001 $47
MGB 5 Cap Main 206-5002 $72
Mitsubishi 2.0L (4B11) DOHC (2008 and later) ARP2000 207-5201 Call Contact Us
Porsche 3.4L Non-Turbo water cooled engine - 911 (996) 204-5001 Call Contact Us
Subaru 2.0L, 2.2L & 2.5L SOHC/DOHC EJ Series
Crankcase thru bolt kit
260-5401 $349
Toyota 1.6L (4AGE) DOHC 203-5001 $47