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ARP Main Stud/Bolt Kits

ARP Main Stud/Bolt Kits image 1
General product image. Actual product may vary from image(s).
by ARP
Category: Hardware
Product Review:

ARP Main Studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 200,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 1000% stronger than others. All kits come complete with hardened parallel-ground washers and aerospace quality nuts. Reduce crankshaft flex and main cap freeting with these premium quality main studs. Don’t settle for anything less than the best!

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 gives them about 1000% longer fatigue life than most main bolts, which are threaded prior to heat-treating. Available in the popular High Performance Series, which, at a nominal rating of 180,000 psi, is a premium replacement for OEM fasteners, or the 200,000 psi nominal rated Pro Series, application-specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel-ground, hardened washers are included.

For more information on this product you may visit the ARP website.

ARP Main Stud/Bolt Kits Applications:

Part Number



Acura ARP Main Stud/Bolt Kits
Acura Integra
1990-2001 Acura Integra

1.8L (B18A1/B1) Acura

1994-2001 Acura Integra GSR / Type R

1.8L (B18C1) Acura

Honda ARP Main Stud/Bolt Kits
Honda Civic
1999-2000 Honda Civic Si
1.6L (B16A)(12 pt nuts)
Honda Prelude
1992-2001 Honda Prelude
2.2L (H22A) & 2.3L (H23A) (12 pt nuts)
Mitsubishi ARP Main Stud/Bolt Kits
Mitsubishi Lancer
2003-2006 Mitsubishi Lancer Evo
2.0L (4G63) DOHC
Subaru ARP Main Stud/Bolt Kits
Subaru Impreza
2002-2006 Subaru Impreza WRX / STi
2.0L / 2.2L & 2.5L SOHC/DOHC EJ Series Crankcase thru bolt kit

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