Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. These 1803 rockers feature a 1.65 ratio for use with 3/8" stud Chevrolet 265-400 Small Block.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1973-1975 | Buick | Apollo | Base |
| 1975 | Buick | Apollo | SR |
| 1972-1973 | Buick | Centurion | Base |
| 1973-1977,1980 | Buick | Century | Base |
| 1975-1979 | Buick | Century | Custom |
| 1980 | Buick | Century | Estate |
| 1976 | Buick | Century | Indianapolis 500 Pace Car |
| 1978-1980 | Buick | Century | Limited |
| 1973-1975 | Buick | Century | Luxus |
| 1978-1979 | Buick | Century | Special |
| 1978 | Buick | Century | Sport |
| 1991-1993 | Buick | Commercial Chassis | Base |
| 1976-1977 | Buick | Electra | 225 |
| 1976-1977 | Buick | Electra | Limited |
| 1973 | Buick | Estate Wagon | Base |
| 1972 | Buick | GS | Base |
| 1972-1974,1977-1978 | Buick | LeSabre | Base |
| 1972-1973,1977-1978 | Buick | LeSabre | Custom |
| 1977 | Buick | LeSabre | Custom Sport |
| 1974 | Buick | LeSabre | Luxus |
| 1973-1980 | Buick | Regal | Base |
| 1978-1980 | Buick | Regal | Limited |
| 1976-1977 | Buick | Regal | SR |
| 1992-1993 | Buick | Roadmaster | Base |
| 1991-1993 | Buick | Roadmaster | Estate Wagon |
| 1992-1993 | Buick | Roadmaster | Limited |
| 1972 | Buick | Skylark | 350 |
| 1972,1975-1979 | Buick | Skylark | Base |
| 1972,1978-1979 | Buick | Skylark | Custom |
| 1976-1979 | Buick | Skylark | S |
| 1978 | Buick | Skylark | Sport |
| 1975-1977 | Buick | Skylark | SR |
| 1972 | Buick | Sportwagon | Base |
| 1990-1992 | Cadillac | Brougham | Base |
| 1990-1992 | Cadillac | Brougham | d'Elegance |
| 1992-1993 | Cadillac | Commercial Chassis | Brougham |
| 1980 | Cadillac | Eldorado | Base |
| 1980 | Cadillac | Eldorado | Biarritz |
| 1980 | Cadillac | Eldorado | Cabriolet |
| 1993 | Cadillac | Fleetwood | Base |
| 1993 | Cadillac | Fleetwood | Brougham |
| 1980 | Cadillac | Seville | Base |
| 1980 | Cadillac | Seville | Elegante |
| 1975 | Checker | Marathon | Aerobus |
| 1975-1982 | Checker | Marathon | Base |
| 1975-1982 | Checker | Marathon | Deluxe |
| 1955-1975 | Chevrolet | Bel Air | Base |
| 1955-1956 | Chevrolet | Bel Air | Beauville |
| 1955-1957 | Chevrolet | Bel Air | Nomad |
| 1958-1972 | Chevrolet | Biscayne | Base |
| 1960 | Chevrolet | Biscayne | Fleetmaster |
| 1958-1961,1969-1972 | Chevrolet | Brookwood | Base |
| 1967-1980,1988 | Chevrolet | Camaro | Base |
| 1979-1986 | Chevrolet | Camaro | Berlinetta |
| 1985-1990 | Chevrolet | Camaro | Iroc-Z |
| 1973-1978,1987 | Chevrolet | Camaro | LT |
| 1976-1978 | Chevrolet | Camaro | LT Rally Sport |
| 1976-1980 | Chevrolet | Camaro | Rally Sport |
| 1967-1973,1975,1989-1992 | Chevrolet | Camaro | RS |
| 1992 | Chevrolet | Camaro | RS Heritage Edition |
| 1981-1987 | Chevrolet | Camaro | Sport |
| 1967-1972 | Chevrolet | Camaro | SS |
| 1970-1974,1977-1987,1991-1992 | Chevrolet | Camaro | Z28 |
| 1992 | Chevrolet | Camaro | Z28 Heritage Edition |
| 1982 | Chevrolet | Camaro | Z28 Indianapolis 500 Pace Car |
| 1966-1972,1986-1992 | Chevrolet | Caprice | Base |
| 1973-1996 | Chevrolet | Caprice | Classic |
| 1986-1990 | Chevrolet | Caprice | Classic Brougham |
| 1976-1978,1981-1982 | Chevrolet | Caprice | Classic Estate |
| 1976-1981 | Chevrolet | Caprice | Classic Landau |
| 1993-1994 | Chevrolet | Caprice | Classic LS |
| 1987-1990 | Chevrolet | Caprice | Classic LS Brougham |
| 1991-1993 | Chevrolet | Caprice | Classic LTZ |
| 1975-1976,1979-1980 | Chevrolet | Caprice | Classic Sport |
| 1973-1974 | Chevrolet | Caprice | Estate |
| 1975 | Chevrolet | Caprice | Estate Wagon |
| 1967-1968 | Chevrolet | Chevelle | 300 |
| 1967-1969 | Chevrolet | Chevelle | 300 Deluxe |
| 1964-1968,1970-1972 | Chevrolet | Chevelle | Base |
| 1967-1972 | Chevrolet | Chevelle | Concours |
| 1969-1972 | Chevrolet | Chevelle | Concours Estate |
| 1965-1967,1973 | Chevrolet | Chevelle | Deluxe |
| 1969-1972 | Chevrolet | Chevelle | Greenbrier |
| 1968-1972 | Chevrolet | Chevelle | Malibu |
| 1968-1972 | Chevrolet | Chevelle | Nomad |
| 1964-1972 | Chevrolet | Chevelle | SS |
| 1963-1967 | Chevrolet | Chevy II | Base |
| 1963-1968 | Chevrolet | Chevy II | Nova |
| 1964-1967 | Chevrolet | Chevy II | Nova SS |
| 1988 | Chevrolet | Corvette | 35th Anniversary Edition |
| 1955-1972,1974,1977-1982,1984-1991 | Chevrolet | Corvette | Base |
| 1982 | Chevrolet | Corvette | Collector's Edition |
| 1978,1986 | Chevrolet | Corvette | Indianapolis 500 Pace Car |
| 1978 | Chevrolet | Corvette | Silver Anniversary Edition |
| 1975-1976 | Chevrolet | Corvette | Stingray |
| 1958 | Chevrolet | Del Ray | Base |
| 1959-1985 | Chevrolet | Impala | Base |
| 1975-1977 | Chevrolet | Impala | Custom |
| 1976 | Chevrolet | Impala | Custom Landau |
| 1981-1982 | Chevrolet | Impala | Estate |
| 1977-1979 | Chevrolet | Impala | Landau |
| 1976 | Chevrolet | Impala | S |
| 1975-1976,1979-1980 | Chevrolet | Impala | Sport |
| 1964-1967 | Chevrolet | Impala | SS |
| 1969-1972 | Chevrolet | Kingswood | Base |
| 1969-1972 | Chevrolet | Kingswood | Estate |
| 1973-1975 | Chevrolet | Laguna | Base |
| 1973 | Chevrolet | Laguna | Estate |
| 1975-1976 | Chevrolet | Laguna | S3 |
| 1964-1967,1973-1981 | Chevrolet | Malibu | Base |
| 1974-1983 | Chevrolet | Malibu | Classic |
| 1975-1976,1978-1980 | Chevrolet | Malibu | Classic Estate |
| 1976-1981 | Chevrolet | Malibu | Classic Landau |
| 1977,1979-1980 | Chevrolet | Malibu | Classic Sport |
| 1973-1974,1979-1980 | Chevrolet | Malibu | Estate |
| 1976,1979 | Chevrolet | Malibu | Landau |
| 1979 | Chevrolet | Malibu | Police |
| 1977,1979-1980 | Chevrolet | Malibu | Sport |
| 1970-1974,1979,1981-1988 | Chevrolet | Monte Carlo | Base |
| 1983 | Chevrolet | Monte Carlo | CL |
| 1973-1974,1976,1978-1981 | Chevrolet | Monte Carlo | Landau |
| 1986-1988 | Chevrolet | Monte Carlo | LS |
| 1973,1975-1977 | Chevrolet | Monte Carlo | S |
| 1978,1980 | Chevrolet | Monte Carlo | Sport |
| 1983-1988 | Chevrolet | Monte Carlo | SS |
| 1975-1979 | Chevrolet | Monza | 2+2 |
| 1978-1979 | Chevrolet | Monza | 2+2 Sport |
| 1976-1979 | Chevrolet | Monza | 2+2 Spyder |
| 1976,1978-1979 | Chevrolet | Monza | Base |
| 1977 | Chevrolet | Monza | Mirage |
| 1975,1978-1979 | Chevrolet | Monza | S |
| 1978 | Chevrolet | Monza | Sport |
| 1977 | Chevrolet | Monza | Towne Coupe |
| 1977 | Chevrolet | Monza | Towne Coupe Cabriolet |
| 1977 | Chevrolet | Monza | Towne Coupe Sport |
| 1969-1979 | Chevrolet | Nova | Base |
| 1976-1977 | Chevrolet | Nova | Concours |
| 1973-1975,1978-1979 | Chevrolet | Nova | Custom |
| 1975 | Chevrolet | Nova | LN |
| 1975-1978 | Chevrolet | Nova | Police |
| 1977-1979 | Chevrolet | Nova | Rally |
| 1976 | Chevrolet | Nova | SS |
| 1955-1957 | Chevrolet | One-Fifty Series | Base |
| 1969-1972 | Chevrolet | Townsman | Base |
| 1955-1957 | Chevrolet | Two-Ten Series | Base |
| 1955-1957 | Chevrolet | Two-Ten Series | Del Ray |
| 1959 | Fiat | 1100 | Base |
| 1972-1973 | Oldsmobile | 98 | Base |
| 1973 | Oldsmobile | 98 | Regency |
| 1975,1977,1991-1992 | Oldsmobile | Custom Cruiser | Base |
| 1975 | Oldsmobile | Custom Cruiser | Panel |
| 1972-1973,1980 | Oldsmobile | Cutlass | Base |
| 1980 | Oldsmobile | Cutlass | Brougham |
| 1972 | Oldsmobile | Cutlass | Cruiser |
| 1980 | Oldsmobile | Cutlass | LS |
| 1972-1973 | Oldsmobile | Cutlass | S |
| 1978-1979 | Oldsmobile | Cutlass | Vista Cruiser |
| 1979 | Oldsmobile | Cutlass | Vista Cruiser Brougham |
| 1978-1980 | Oldsmobile | Cutlass Calais | Base |
| 1980,1982 | Oldsmobile | Cutlass Cruiser | Base |
| 1980 | Oldsmobile | Cutlass Cruiser | Brougham |
| 1978 | Oldsmobile | Cutlass Salon | 442 |
| 1978-1980 | Oldsmobile | Cutlass Salon | Base |
| 1978-1980 | Oldsmobile | Cutlass Salon | Brougham |
| 1972-1973,1978-1980 | Oldsmobile | Cutlass Supreme | Base |
| 1978-1980 | Oldsmobile | Cutlass Supreme | Brougham |
| 1972-1973,1975,1977 | Oldsmobile | Delta 88 | Base |
| 1972-1973,1975,1977 | Oldsmobile | Delta 88 | Royale |
| 1972 | Oldsmobile | F85 | Base |
| 1973,1975-1979 | Oldsmobile | Omega | Base |
| 1976-1979 | Oldsmobile | Omega | Brougham |
| 1978-1979 | Oldsmobile | Omega | Brougham LS |
| 1977 | Oldsmobile | Omega | Deluxe |
| 1976-1977 | Oldsmobile | Omega | F85 |
| 1975 | Oldsmobile | Omega | Salon |
| 1976-1978 | Oldsmobile | Omega | SX |
| 1977-1979 | Oldsmobile | Starfire | Base |
| 1977-1979 | Oldsmobile | Starfire | Firenza |
| 1977-1979 | Oldsmobile | Starfire | GT |
| 1977-1979 | Oldsmobile | Starfire | SX |
| 1972-1973 | Oldsmobile | Vista Cruiser | Base |
| 1972-1975,1983-1986 | Pontiac | Bonneville | Base |
| 1983-1986 | Pontiac | Bonneville | Brougham |
| 1984-1986 | Pontiac | Bonneville | LE |
| 1967,1974-1975 | Pontiac | Catalina | Base |
| 1967,1974-1975 | Pontiac | Catalina | Safari |
| 1967 | Pontiac | Catalina | Ventura |
| 1972-1974,1977-1980,1982-1992 | Pontiac | Firebird | Base |
| 1972-1974,1977-1980 | Pontiac | Firebird | Esprit |
| 1972-1974,1977-1981,1989-1992 | Pontiac | Firebird | Formula |
| 1982-1986 | Pontiac | Firebird | S/E |
| 1972-1974,1980-1992 | Pontiac | Firebird | Trans Am |
| 1989-1992 | Pontiac | Firebird | Trans Am GTA |
| 1974-1975,1978-1980 | Pontiac | Grand Am | Base |
| 1975,1977-1980 | Pontiac | Grand LeMans | Base |
| 1975,1978-1980 | Pontiac | Grand LeMans | Safari |
| 1978-1980,1983-1987 | Pontiac | Grand Prix | Base |
| 1983-1987 | Pontiac | Grand Prix | Brougham |
| 1984-1987 | Pontiac | Grand Prix | LE |
| 1975,1978-1980,1983 | Pontiac | Grand Prix | LJ |
- 1955-chevrolet-corvette-base-esi8950460
- 1956-chevrolet-corvette-base-esi5511976
- 1957-chevrolet-corvette-base-esi6720528
- 1958-chevrolet-corvette-base-esi5113742
- 1959-chevrolet-corvette-base-esi1733273
- 1960-chevrolet-corvette-base-esi1144777
- 1961-chevrolet-corvette-base-esi4201359
- 1962-chevrolet-corvette-base-esi1757629
- 1969-chevrolet-nova-base-esi7573634
- 1970-chevrolet-camaro-base-esi5293617
- 1971-chevrolet-camaro-base-esi8321578
- 1972-chevrolet-camaro-base-esi5559977
- 1972-chevrolet-camaro-z28-esi8526895
- 1972-pontiac-firebird-formula-esi3035420
- 1972-pontiac-firebird-trans-am-esi1499219
- 1973-chevrolet-camaro-base-esi5578174
- 1973-chevrolet-camaro-lt-esi5034078
- 1973-pontiac-firebird-formula-esi3482779
- 1973-pontiac-firebird-trans-am-esi8959301
- 1974-chevrolet-camaro-base-esi1073549
- 1974-chevrolet-camaro-lt-esi6922756
- 1974-pontiac-firebird-formula-esi7067899
- 1974-pontiac-firebird-trans-am-esi4370562
- 1975-chevrolet-camaro-base-esi7052596
- 1975-chevrolet-camaro-lt-esi2274229
- 1975-chevrolet-camaro-rs-esi6437921
- 1975-chevrolet-monte-carlo-s-esi1570825
- 1976-chevrolet-camaro-base-esi8826139
- 1976-chevrolet-camaro-lt-esi6929854
- 1976-chevrolet-camaro-lt-rally-sport-esi8105115
- 1976-chevrolet-camaro-rally-sport-esi8846068
- 1976-chevrolet-monte-carlo-landau-esi3354002
- 1976-chevrolet-monte-carlo-s-esi4385262
- 1977-chevrolet-camaro-base-esi5948636
- 1977-chevrolet-camaro-lt-esi5341394
- 1977-chevrolet-camaro-lt-rally-sport-esi6530229
- 1977-chevrolet-camaro-rally-sport-esi5456740
- 1977-chevrolet-camaro-z28-esi9723133
- 1977-chevrolet-impala-base-esi5098541
- 1977-chevrolet-impala-custom-esi6514587
- 1977-chevrolet-impala-landau-esi3003083
- 1977-chevrolet-monte-carlo-s-esi9857118
- 1977-pontiac-firebird-formula-esi7142043
- 1978-chevrolet-camaro-base-esi5422754
- 1978-chevrolet-camaro-lt-esi2051490
- 1978-chevrolet-camaro-lt-rally-sport-esi9057587
- 1978-chevrolet-camaro-rally-sport-esi8087766
- 1978-chevrolet-camaro-z28-esi7301838
- 1978-chevrolet-monte-carlo-landau-esi2602340
- 1978-chevrolet-monte-carlo-sport-esi1848852
- 1978-pontiac-firebird-formula-esi2092918
- 1979-chevrolet-camaro-base-esi3913956
- 1979-chevrolet-camaro-berlinetta-esi6672513
- 1979-chevrolet-camaro-z28-esi9242103
- 1979-chevrolet-impala-base-esi1579383
- 1979-chevrolet-impala-landau-esi1354994
- 1979-chevrolet-monte-carlo-base-esi1758500
- 1979-chevrolet-monte-carlo-landau-esi6260374
- 1979-pontiac-firebird-formula-esi5881724
- 1980-chevrolet-camaro-base-esi5513582
- 1980-chevrolet-camaro-berlinetta-esi1008833
- 1980-chevrolet-camaro-z28-esi9501036
- 1980-chevrolet-impala-base-esi7337493
- 1980-chevrolet-impala-sport-esi4485059
- 1980-chevrolet-monte-carlo-landau-esi7928777
- 1980-chevrolet-monte-carlo-sport-esi9599786
- 1980-pontiac-firebird-formula-esi5341435
- 1980-pontiac-firebird-trans-am-esi1528112
- 1981-chevrolet-camaro-berlinetta-esi7905305
- 1981-chevrolet-camaro-sport-esi5885131
- 1981-chevrolet-camaro-z28-esi6807318
- 1981-chevrolet-impala-base-esi6654594
- 1981-chevrolet-impala-estate-esi3281376
- 1981-chevrolet-monte-carlo-base-esi1755142
- 1981-chevrolet-monte-carlo-landau-esi4213825
- 1981-pontiac-firebird-formula-esi1538315
- 1981-pontiac-firebird-trans-am-esi8502957
- 1982-chevrolet-impala-base-esi2980201
- 1982-chevrolet-impala-estate-esi9336225
- 1982-chevrolet-monte-carlo-base-esi2173960
- 1983-chevrolet-impala-base-esi5628764
- 1983-chevrolet-monte-carlo-base-esi6519764
- 1983-chevrolet-monte-carlo-cl-esi9690283
- 1983-chevrolet-monte-carlo-ss-esi7846179
- 1984-chevrolet-corvette-base-esi9190058
- 1984-chevrolet-impala-base-esi1074775
- 1984-chevrolet-monte-carlo-base-esi9530744
- 1984-chevrolet-monte-carlo-ss-esi3182216
- 1985-chevrolet-corvette-base-esi1240322
- 1985-chevrolet-impala-base-esi3052155
- 1985-chevrolet-monte-carlo-base-esi5728474
- 1985-chevrolet-monte-carlo-ss-esi1750718
- 1986-chevrolet-corvette-base-esi3728924
- 1986-chevrolet-corvette-indianapolis-500-pace-car-esi9124143
- 1986-chevrolet-monte-carlo-base-esi2122484
- 1986-chevrolet-monte-carlo-ss-esi3532370
- 1987-chevrolet-corvette-base-esi2053079
- 1987-chevrolet-monte-carlo-base-esi9374318
- 1987-chevrolet-monte-carlo-ss-esi4124778
- 1988-chevrolet-monte-carlo-base-esi7050074
- 1988-chevrolet-monte-carlo-ls-esi9333480
- 1988-chevrolet-monte-carlo-ss-esi2420779
- Bucket:Chevy
- Engine Components>Rocker Arms
- EPA:N/A
- LTL:N
- MPN:1803-16
- Non-CARB:N
- Prop65:Y
- SpecialOrder:Y