ARP Main Bolt Kit 4Bolt Main
Main Studs
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The 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.
Main Bolts
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 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 with each kit.
There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The 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.
Main Bolts
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 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 with each kit.
- Main Bolt Kit 4Bolt Main
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1970 - 1974 | Chevrolet | Bel Air | Base |
| 1970 - 1972 | Chevrolet | Biscayne | Base |
| 1973 | Chevrolet | Blazer | Base |
| 1970 - 1972 | Chevrolet | Brookwood | Base |
| 1968 - 1974 | Chevrolet | C10 Pickup | Base |
| 1968 - 1974 | Chevrolet | C10 Suburban | Base |
| 1975 | Chevrolet | C10 Suburban | Silverado, Custom Deluxe, Scottsdale |
| 1990 - 1993 | Chevrolet | C1500 | 454 SS, Cheyenne, WT, Silverado |
| 1990 - 1991 | Chevrolet | C1500 | Base |
| 1990 - 1992 | Chevrolet | C1500 | Scottsdale |
| 1968 - 1974 | Chevrolet | C20 Pickup | Base |
| 1968 - 1974 | Chevrolet | C20 Suburban | Base |
| 1975 - 1979 | Chevrolet | C20 Suburban | Scottsdale, Custom Deluxe, Silverado |
| 1991 - 1995 | Chevrolet | C2500 | Base, Silverado, Cheyenne |
| 1993 | Chevrolet | C2500 | Custom, 400 SS |
| 1991 - 1992 | Chevrolet | C2500 | Scottsdale |
| 1994 - 1995 | Chevrolet | C2500 | WT |
| 1992 - 1995 | Chevrolet | C2500 Suburban | Base |
| 1995 | Chevrolet | C2500 Suburban | LS, LT |
| 1992 - 1994 | Chevrolet | C2500 Suburban | Silverado |
| 1968 - 1974 | Chevrolet | C30 Pickup | Base |
| 1994 - 1995 | Chevrolet | C3500 | Base |
| 1988 - 1992 | Chevrolet | C3500 | Scottsdale |
| 1988 - 1995 | Chevrolet | C3500 | Silverado, Cheyenne |
| 1972 | Chevrolet | Camaro | Z28, RS, SS, Base |
| 1970 - 1974 | Chevrolet | Caprice | Base |
| 1973 - 1975 | Chevrolet | Caprice | Classic |
| 1975 | Chevrolet | Caprice | Classic Sport, Estate Wagon |
| 1973 - 1974 | Chevrolet | Caprice | Estate |
| 1970 - 1972 | Chevrolet | Chevelle | Nomad, Base, SS, Malibu, Concours Estate, Concours, Greenbrier |
| 1973 - 1974 | Chevrolet | Corvette | Base |
| 1970 - 1974 | Chevrolet | El Camino | Base, Custom, SS |
| 1973 - 1974 | Chevrolet | G10 Van | Sportvan, Base |
| 1973 - 1974 | Chevrolet | G20 Van | Base, Sportvan |
| 1973 - 1974 | Chevrolet | G30 Van | Sportvan, Base |
| 1970 - 1974 | Chevrolet | Impala | Base |
| 1968 - 1974 | Chevrolet | K10 Pickup | Base |
| 1968 - 1972 | Chevrolet | K10 Suburban | Base |
| 1977 - 1979 | Chevrolet | K10 Suburban | Custom Deluxe, Silverado, Scottsdale |
| 1968 - 1974 | Chevrolet | K20 Pickup | Base |
| 1973 | Chevrolet | K20 Suburban | Base |
| 1977 - 1980 | Chevrolet | K20 Suburban | Custom Deluxe, Silverado, Scottsdale |
| 1994 - 1995 | Chevrolet | K2500 | Base, WT |
| 1991 - 1992 | Chevrolet | K2500 | Scottsdale |
| 1991 - 1995 | Chevrolet | K2500 | Silverado, Cheyenne |
| 1992 - 1995 | Chevrolet | K2500 Suburban | Base |
| 1995 | Chevrolet | K2500 Suburban | LS, LT |
| 1992 - 1994 | Chevrolet | K2500 Suburban | Silverado |
| 1968 - 1971 | Chevrolet | K30 Pickup | Base |
| 1977 - 1979 | Chevrolet | K5 Blazer | Custom Deluxe, Cheyenne |
| 1978 | Chevrolet | K5 Blazer | Silverado |
ARP Main Bolt Kit 4Bolt Main
Sale price$106.96 USD
Regular price$145.92 USD