Holley Big Block Mid-Mount Complete Accessory System for Chevrolet and GMC
Part # 20-242
- The Mid-Mount complete accessory system has all accessories pulled in tighter than other accessory drives.
- Bracketless accessory mounting with ultra-easy assembly
- O-ring seal to engine
- Hidden thermostat bypass and heater hose ports with NPT line adapters included
- LT1 style premium alternator
- LT1 style water pump design
- Compact SD7 A/C compressor with line adapter included
- Type II power steering pump with baffled reservoir
- P/S adapter hardline to AN -6 adapter included
- OE pulley ratios for optimal accessory performance
- Available in natural and black finishes
- Billet alternator, tensioner, and compressor pulley covers
Description
Holley's Mid-Mount accessory drives are now available for your big block Chevrolet engines! The revolutionary system does what no other accessory bracket system has done… GETS RID OF THE BRACKETS!
Specifications
| A/C Compressor Included | Yes |
|---|---|
| A/C Compressor Type | SD7 |
| Accessory Drive Style | Mid-Mount |
| Alternator Amperage | 150 |
| Alternator Included | Yes |
| Application | Chevrolet Big Block |
| Belt Included | Yes |
| Choose Your Part | Accessory Drive Kits |
| Damper Included | No |
| Damper Style | Factory |
| Engine | Chevy Big Block V8 |
| Finish | Cast |
| Inlet Size | 35.4mm/1.4" |
| Material | Cast Aluminum |
| Output | 150 Amps |
| Power Steering Hardline Included | Yes |
| Power Steering Pulley Included | Yes |
| Power Steering Pump Included | Yes |
| Power Steering Reservoir Included | Yes |
| Pulley Style | Serpentine |
| Tensioner Included | Yes |
| Thermostat Included | No |
| Water Neck Included | Yes |
| UPC / GTIN | 00090127072806 |
| Warranty | Manufacturer's Limited 90 Day Warranty |
| Year | Make | Model | Submodel | Engine |
|---|---|---|---|---|
| 1963 | Chevrolet | Bel Air | Base | 7.0L V8 |
| 1965 | Chevrolet | Bel Air | Base | 6.5L V8 |
| 1966 - 1969 | Chevrolet | Bel Air | Base | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Bel Air | Base | 6.6L V8, 7.4L V8 |
| 1973 - 1975 | Chevrolet | Bel Air | Base | 7.4L V8 |
| 1963 | Chevrolet | Biscayne | Base | 7.0L V8 |
| 1965 | Chevrolet | Biscayne | Base | 6.5L V8 |
| 1966 - 1969 | Chevrolet | Biscayne | Base | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Biscayne | Base | 6.6L V8, 7.4L V8 |
| 1973 - 1974 | Chevrolet | Blazer | Base | 7.4L V8 |
| 1969 | Chevrolet | Brookwood | Base | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Brookwood | Base | 6.6L V8, 7.4L V8 |
| 1975 - 1977 | Chevrolet | C10 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1978 - 1980 | Chevrolet | C10 | Big Ten, Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1968 - 1969 | Chevrolet | C10 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | C10 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | C10 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | Chevrolet | C10 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | C10 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | C10 Suburban | Base | 7.4L V8 |
| 1975 - 1980 | Chevrolet | C10 Suburban | Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1975 - 1980 | Chevrolet | C20 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1981 | Chevrolet | C20 | Cheyenne, Custom, Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1982 - 1986 | Chevrolet | C20 | Custom, Scottsdale, Silverado | 7.4L V8 |
| 1968 - 1969 | Chevrolet | C20 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | C20 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | C20 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | Chevrolet | C20 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | C20 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | C20 Suburban | Base | 7.4L V8 |
| 1975 - 1977 | Chevrolet | C20 Suburban | Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1978 | Chevrolet | C20 Suburban | Custom Deluxe, Scottsdale | 7.4L V8 |
| 1979 - 1980 | Chevrolet | C20 Suburban | Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1981 | Chevrolet | C20 Suburban | Custom, Deluxe | 7.4L V8 |
| 1982 | Chevrolet | C20 Suburban | Custom, Scottsdale, Silverado | 7.4L V8 |
| 1983 | Chevrolet | C20 Suburban | Custom, Silverado | 7.4L V8 |
| 1984 - 1986 | Chevrolet | C20 Suburban | Custom, Scottsdale, Silverado | 7.4L V8 |
| 1975 - 1980 | Chevrolet | C30 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1981 | Chevrolet | C30 | Cheyenne, Custom, Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1982 - 1986 | Chevrolet | C30 | Custom, Scottsdale, Silverado | 7.4L V8 |
| 1968 - 1969 | Chevrolet | C30 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | C30 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | C30 Pickup | Base | 7.4L V8 |
| 1967 | Chevrolet | Camaro | Base, RS, SS | 6.5L V8 |
| 1968 | Chevrolet | Camaro | SS | 6.5L V8 |
| 1969 | Chevrolet | Camaro | Base, RS, SS | 6.5L V8, 7.0L V8 |
| 1970 | Chevrolet | Camaro | SS | 6.6L V8 |
| 1971 | Chevrolet | Camaro | Base, SS | 6.6L V8 |
| 1972 | Chevrolet | Camaro | Base, SS, Z28 | 6.6L V8 |
| 1966 - 1969 | Chevrolet | Caprice | Base | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Caprice | Base | 6.6L V8, 7.4L V8 |
| 1973 - 1974 | Chevrolet | Caprice | Classic, Estate | 7.4L V8 |
| 1975 | Chevrolet | Caprice | Classic, Classic Sport, Estate Wagon | 7.4L V8 |
| 1976 | Chevrolet | Caprice | Classic, Classic Estate, Classic Landau, Classic Sport | 7.4L V8 |
| 1965 | Chevrolet | Chevelle | Malibu Super Sport | 6.5L V8 |
| 1966 | Chevrolet | Chevelle | Super Sport 396 | 6.5L V8 |
| 1967 - 1969 | Chevrolet | Chevelle | SS 396 | 6.5L V8 |
| 1970 | Chevrolet | Chevelle | Base, Concours, Concours Estate, Greenbrier, Malibu, Nomad, SS 396, SS 454 | 6.6L V8, 7.4L V8 |
| 1971 - 1972 | Chevrolet | Chevelle | Base, Concours, Concours Estate, Greenbrier, Heavy Chevy, Malibu, Nomad, SS | 6.6L V8, 7.4L V8 |
| 1973 | Chevrolet | Chevelle | Deluxe, Laguna, Laguna Estate, Malibu, Malibu Estate, SS | 7.4L V8 |
| 1974 - 1975 | Chevrolet | Chevelle | Laguna Type S-3, Malibu, Malibu Classic, Malibu Classic Estate | 7.4L V8 |
| 1968 | Chevrolet | Chevy II | Nova | 6.5L V8 |
| 1965 | Chevrolet | Corvette | Base | 6.5L V8 |
| 1966 - 1969 | Chevrolet | Corvette | Base | 7.0L V8 |
| 1970 - 1974 | Chevrolet | Corvette | Base | 7.4L V8 |
| 1966 - 1967 | Chevrolet | El Camino | Base | 6.5L V8 |
| 1968 - 1969 | Chevrolet | El Camino | Base, Custom, SS | 6.5L V8 |
| 1970 | Chevrolet | El Camino | Base, Custom, SS | 6.5L V8, 6.6L V8, 7.4L V8 |
| 1971 - 1972 | Chevrolet | El Camino | Base, Custom, SS | 6.6L V8, 7.4L V8 |
| 1973 - 1974 | Chevrolet | El Camino | Base, Custom, SS | 7.4L V8 |
| 1975 | Chevrolet | El Camino | Base | 7.4L V8 |
| 1969 | Chevrolet | Estate | Base | 6.5L V8, 7.0L V8 |
| 1970 | Chevrolet | Estate | Base | 6.6L V8, 7.4L V8 |
| 1973 - 1974 | Chevrolet | G10 Van | Base | 7.4L V8 |
| 1976 | Chevrolet | G20 | Beauville, Chevy Van | 7.4L V8 |
| 1973 - 1974 | Chevrolet | G20 Van | Base, Sportvan | 7.4L V8 |
| 1975 - 1976 | Chevrolet | G30 | Beauville, Chevy Van, Hi-Cube | 7.4L V8 |
| 1973 - 1974 | Chevrolet | G30 Van | Base | 7.4L V8 |
| 1963 | Chevrolet | Impala | Base | 7.0L V8 |
| 1965 | Chevrolet | Impala | Base, SS | 6.5L V8 |
| 1966 - 1967 | Chevrolet | Impala | Base, SS | 6.5L V8, 7.0L V8 |
| 1968 - 1969 | Chevrolet | Impala | Base | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Impala | Base | 6.6L V8, 7.4L V8 |
| 1973 - 1974 | Chevrolet | Impala | Base | 7.4L V8 |
| 1975 | Chevrolet | Impala | Base, Custom, Sport | 7.4L V8 |
| 1976 | Chevrolet | Impala | Base, Custom, Custom Landau, S, Sport | 7.4L V8 |
| 1976 | Chevrolet | K10 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1979 | Chevrolet | K10 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 6.6L V8 |
| 1980 | Chevrolet | K10 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1968 - 1969 | Chevrolet | K10 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | K10 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | K10 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | Chevrolet | K10 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | K10 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | K10 Suburban | Base | 7.4L V8 |
| 1976 - 1978 | Chevrolet | K20 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1980 | Chevrolet | K20 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 6.6L V8 |
| 1968 - 1969 | Chevrolet | K20 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | K20 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | K20 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | Chevrolet | K20 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | K20 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | K20 Suburban | Base | 7.4L V8 |
| 1985 | Chevrolet | K20 Suburban | Custom, Scottsdale, Silverado | 7.4L V8 |
| 1977 | Chevrolet | K30 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1980 | Chevrolet | K30 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1981 | Chevrolet | K30 | Cheyenne, Custom, Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1982 - 1986 | Chevrolet | K30 | Custom, Scottsdale, Silverado | 7.4L V8 |
| 1968 - 1969 | Chevrolet | K30 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | Chevrolet | K30 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | Chevrolet | K30 Pickup | Base | 7.4L V8 |
| 1976 | Chevrolet | K5 Blazer | Base, Cheyenne | 7.4L V8 |
| 1977 | Chevrolet | K5 Blazer | Cheyenne, Custom Deluxe | 7.4L V8 |
| 1978 | Chevrolet | K5 Blazer | Cheyenne, Custom Deluxe, Silverado | 7.4L V8 |
| 1969 | Chevrolet | Kingswood | Base, Estate | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Kingswood | Base, Estate | 6.6L V8, 7.4L V8 |
| 1970 - 1972 | Chevrolet | Monte Carlo | Base | 6.6L V8, 7.4L V8 |
| 1973 | Chevrolet | Monte Carlo | Base, Landau, S | 7.4L V8 |
| 1974 | Chevrolet | Monte Carlo | Base, Landau | 7.4L V8 |
| 1975 | Chevrolet | Monte Carlo | S | 7.4L V8 |
| 1969 | Chevrolet | Nova | Base | 6.5L V8 |
| 1970 | Chevrolet | Nova | Base | 6.5L V8, 6.6L V8, 7.4L V8 |
| 1971 | Chevrolet | Nova | Base | 6.6L V8, 7.4L V8 |
| 1972 | Chevrolet | Nova | Base | 6.6L V8 |
| 1973 | Chevrolet | P10 Van | Base | 7.4L V8 |
| 1970 - 1971 | Chevrolet | P20 Van | Base | 7.4L V8 |
| 1973 | Chevrolet | P20 Van | Base | 7.4L V8 |
| 1981 - 1982 | Chevrolet | P30 | Base, Step-Van | 7.4L V8 |
| 1970 - 1971 | Chevrolet | P30 Van | Base | 7.4L V8 |
| 1973 - 1974 | Chevrolet | P30 Van | Base | 7.4L V8 |
| 1987 | Chevrolet | R30 | Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1988 | Chevrolet | R30 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1989 | Chevrolet | R3500 | Cheyenne, Scottsdale, Silverado | 7.4L V8 |
| 1969 | Chevrolet | Townsman | Base | 6.5L V8, 7.0L V8 |
| 1970 - 1972 | Chevrolet | Townsman | Base | 6.6L V8, 7.4L V8 |
| 1987 | Chevrolet | V30 | Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1988 | Chevrolet | V30 | Cheyenne, Custom Deluxe, Scottsdale, Silverado | 7.4L V8 |
| 1989 | Chevrolet | V3500 | Cheyenne, Scottsdale, Silverado | 7.4L V8 |
| 1975 - 1976 | GMC | C15 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1977 | GMC | C15 | Base, Heavy Half, High Sierra, Indy Hauler, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1978 | GMC | C15 | Base, Heavy Half, High Sierra, Sierra Classic, Sierra Grande, Street Coupe | 7.4L V8 |
| 1979 - 1980 | GMC | C1500 | Base, Heavy Half, High Sierra, Sierra Classic, Sierra Grande, Street Coupe | 7.4L V8 |
| 1979 - 1980 | GMC | C1500 Suburban | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1968 - 1969 | GMC | C15/C1500 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | GMC | C15/C1500 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | GMC | C15/C1500 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | GMC | C15/C1500 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | GMC | C15/C1500 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | GMC | C15/C1500 Suburban | Base | 7.4L V8 |
| 1975 - 1978 | GMC | C15 Suburban | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1975 - 1978 | GMC | C25 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1979 - 1982 | GMC | C2500 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1983 - 1986 | GMC | C2500 | Base, High Sierra, Sierra Classic | 7.4L V8 |
| 1979 - 1982 | GMC | C2500 Suburban | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1983 - 1986 | GMC | C2500 Suburban | Base, High Sierra, Sierra Classic | 7.4L V8 |
| 1968 - 1969 | GMC | C25/C2500 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | GMC | C25/C2500 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | GMC | C25/C2500 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | GMC | C25/C2500 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | GMC | C25/C2500 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | GMC | C25/C2500 Suburban | Base | 7.4L V8 |
| 1975 - 1978 | GMC | C25 Suburban | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1975 - 1978 | GMC | C35 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1979 - 1982 | GMC | C3500 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1983 - 1986 | GMC | C3500 | Base, High Sierra, Sierra Classic | 7.4L V8 |
| 1988 - 1989 | GMC | C3500 | Sierra, Sierra SLE, Sierra SLX | 7.4L V8 |
| 1968 - 1969 | GMC | C35/C3500 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | GMC | C35/C3500 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | GMC | C35/C3500 Pickup | Base | 7.4L V8 |
| 1975 - 1976 | GMC | G25 | Rally, Rally STX | 7.4L V8 |
| 1976 | GMC | G35 | Magnavan | 7.4L V8 |
| 1973 - 1974 | GMC | Jimmy | Base | 7.4L V8 |
| 1976 | GMC | Jimmy | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1976 | GMC | K15 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1980 | GMC | K1500 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1968 - 1969 | GMC | K15/K1500 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | GMC | K15/K1500 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | GMC | K15/K1500 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | GMC | K15/K1500 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | GMC | K15/K1500 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | GMC | K15/K1500 Suburban | Base | 7.4L V8 |
| 1976 - 1978 | GMC | K25 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1968 - 1969 | GMC | K25/K2500 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | GMC | K25/K2500 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | GMC | K25/K2500 Pickup | Base | 7.4L V8 |
| 1968 - 1969 | GMC | K25/K2500 Suburban | Base | 6.5L V8 |
| 1970 - 1972 | GMC | K25/K2500 Suburban | Base | 6.6L V8 |
| 1973 - 1974 | GMC | K25/K2500 Suburban | Base | 7.4L V8 |
| 1976 - 1977 | GMC | K25 Suburban | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1979 - 1982 | GMC | K3500 | Base, High Sierra, Sierra Classic, Sierra Grande | 7.4L V8 |
| 1983 - 1986 | GMC | K3500 | Base, High Sierra, Sierra Classic | 7.4L V8 |
| 1968 - 1969 | GMC | K35/K3500 Pickup | Base | 6.5L V8 |
| 1970 - 1972 | GMC | K35/K3500 Pickup | Base | 6.6L V8 |
| 1973 - 1974 | GMC | K35/K3500 Pickup | Base | 7.4L V8 |
| 1979 | GMC | P1500 | Base, Value Van | 7.4L V8 |
| 1970 - 1971 | GMC | P25/P2500 Van | Base | 7.4L V8 |
| 1970 - 1971 | GMC | P35/P3500 Van | Base | 7.4L V8 |
| 1973 | GMC | P35/P3500 Van | Base | 7.4L V8 |
| 1974 | GMC | P35/P3500 Van | Base, Motorhome | 7.4L V8 |
| 1987 | GMC | R3500 | Base, High Sierra, Sierra Classic | 7.4L V8 |
| 1971 | GMC | Sprint | Base | 6.6L V8, 7.4L V8 |
| 1972 | GMC | Sprint | Base, Custom | 6.6L V8, 7.4L V8 |
| 1973 | GMC | Sprint | Base, Custom | 7.4L V8 |
| 1974 | GMC | Sprint | Base, Custom | 6.6L V8, 7.4L V8 |
| 1975 | GMC | Sprint | Base, Classic, High Sierra, SP | 6.6L V8, 7.4L V8 |