# COMP Cams Rockers CS 1.5 1/2in Ultra Pro The latest development in Rocker arm Technology from COMP Cams are Ultra Pro Magnumâ„¢ XD Rocker Arms built for 1/2" Studs to increase valve train stiffness and stability. Designed to be used in conjunction with the COMP Cams Hi-Tech 1/2" Rocker Stud Kit, the latest versions of COMP Cams Ultra Pro Magnum XD are built to utilize 1/2" Studs to stabilize SBC valve trains. Ultra Pro Magnumâ„¢ XD Rockers are built to outlast and outperform in accuracy and strength, while maintaining all the benefits of the Ultra Pro Magnumâ„¢ version. The XD Rockers are engineered from durable 8650 Steel and include a machined billet Pushrod seat insert for a super-accurate ratio. The Rockers also boast precision-sorted needle bearings and hardened Roller tips. And since they now feature the added benefit of accepting 1/2" Studs, they are a great choice for anyone looking for more stiffness with Stud mount Rockers. These new Ultra Pro Magnumâ„¢ XD Rocker Arms will provide the ultimate in valve train stability for maximum valve motion both at the track and on the street.1/2" Studs provide a stiffer valve train to achieve maximum valve motion in SBC enginesDeliver increased strength and rigidity while reducing the moment of inertia and optimizing dynamic balanceUltra Pro Magnumâ„¢ XD Rockers feature a machined billet Pushrod seat insert for a super-accurate ratio This Part Fits: Year Make Model Submodel 1955-1957 Chevrolet Bel Air Base 1955-1956 Chevrolet Bel Air Beauville 1955-1957 Chevrolet Bel Air Nomad 1969-1973 Chevrolet Blazer Base 1987 Chevrolet Blazer Custom Deluxe 1987 Chevrolet Blazer Silverado 1969-1974 Chevrolet C10 Suburban Base 1981-1986 Chevrolet C10 Suburban Custom 1975-1980 Chevrolet C10 Suburban Custom Deluxe 1981 Chevrolet C10 Suburban Deluxe 1975-1980,1982,1984-1986 Chevrolet C10 Suburban Scottsdale 1975-1980,1982-1986 Chevrolet C10 Suburban Silverado 1992-1995 Chevrolet C1500 Suburban Base 1995 Chevrolet C1500 Suburban LS 1995 Chevrolet C1500 Suburban LT 1992-1994 Chevrolet C1500 Suburban Silverado 1975-1981 Chevrolet C20 Cheyenne 1981-1986 Chevrolet C20 Custom 1975-1980 Chevrolet C20 Custom Deluxe 1981 Chevrolet C20 Deluxe 1975-1986 Chevrolet C20 Scottsdale 1975-1986 Chevrolet C20 Silverado 1966-1969 Chevrolet C30 Pickup Base 1969-1980 Chevrolet Camaro Base 1979-1981 Chevrolet Camaro Berlinetta 1987-1990 Chevrolet Camaro Iroc-Z 1973-1978 Chevrolet Camaro LT 1976-1978 Chevrolet Camaro LT Rally Sport 1976-1980 Chevrolet Camaro Rally Sport 1967,1969-1973,1975 Chevrolet Camaro RS 1981 Chevrolet Camaro Sport 1967-1972 Chevrolet Camaro SS 1970-1974,1977-1981,1991-1992 Chevrolet Camaro Z28 1992 Chevrolet Camaro Z28 Heritage Edition 1968-1969,1971-1972,1986-1992 Chevrolet Caprice Base 1973-1974,1977-1993 Chevrolet Caprice Classic 1986-1990 Chevrolet Caprice Classic Brougham 1977-1978,1981-1982 Chevrolet Caprice Classic Estate 1977-1981 Chevrolet Caprice Classic Landau 1993 Chevrolet Caprice Classic LS 1987-1990 Chevrolet Caprice Classic LS Brougham 1991-1992 Chevrolet Caprice Classic LTZ 1979-1980 Chevrolet Caprice Classic Sport 1973-1974 Chevrolet Caprice Estate 1972 Chevrolet Chevelle Base 1972 Chevrolet Chevelle Concours 1972 Chevrolet Chevelle Concours Estate 1973 Chevrolet Chevelle Deluxe 1972 Chevrolet Chevelle Greenbrier 1973 Chevrolet Chevelle Laguna 1973 Chevrolet Chevelle Laguna Estate 1972-1976 Chevrolet Chevelle Malibu 1974-1976 Chevrolet Chevelle Malibu Classic 1974-1976 Chevrolet Chevelle Malibu Classic Estate 1973 Chevrolet Chevelle Malibu Estate 1972 Chevrolet Chevelle Nomad 1972 Chevrolet Chevelle SS 1959-1967,1969-1979 Chevrolet Impala Base 1975-1977 Chevrolet Impala Custom 1976 Chevrolet Impala Custom Landau 1977-1979 Chevrolet Impala Landau 1976 Chevrolet Impala S 1975-1976,1979 Chevrolet Impala Sport 1964,1966-1967 Chevrolet Impala SS 1966-1968 Chevrolet K10 Pickup Base 1968 Chevrolet K10 Suburban Base 1968-1973 Chevrolet K20 Suburban Base 1984-1986 Chevrolet K20 Suburban Custom 1977-1978 Chevrolet K20 Suburban Custom Deluxe 1977-1978,1984-1986 Chevrolet K20 Suburban Scottsdale 1977,1985-1986 Chevrolet K20 Suburban Silverado 1972-1973 Chevrolet Monte Carlo Base 1973 Chevrolet Monte Carlo Landau 1973 Chevrolet Monte Carlo S 1989-1991 Chevrolet R2500 Suburban Scottsdale 1989-1991 Chevrolet R2500 Suburban Silverado 1987 Chevrolet V10 Custom Deluxe 1987 Chevrolet V10 Scottsdale 1987 Chevrolet V10 Silverado 1967,1969-1974 GMC C15/C1500 Pickup Base 1967-1968 GMC C15/C1500 Suburban Base 1976-1978 GMC C25 Base 1976-1978 GMC C25 High Sierra 1976-1978 GMC C25 Sierra Classic 1976-1978 GMC C25 Sierra Grande 1978 GMC C25 Suburban Base 1978 GMC C25 Suburban High Sierra 1978 GMC C25 Suburban Sierra Classic 1978 GMC C25 Suburban Sierra Grande 1974 GMC C25/C2500 Pickup Base 1969-1974 GMC C25/C2500 Suburban Base 1979 GMC C2500 Base 1979 GMC C2500 High Sierra 1979 GMC C2500 Sierra Classic 1979 GMC C2500 Sierra Grande 1979-1986,1992-1995 GMC C2500 Suburban Base 1979-1986 GMC C2500 Suburban High Sierra 1979-1986 GMC C2500 Suburban Sierra Classic 1979-1982 GMC C2500 Suburban Sierra Grande 1992-1995 GMC C2500 Suburban SLE 1995 GMC C2500 Suburban SLT 1968-1973 GMC C35/C3500 Pickup Base 1975-1978 GMC G25 Rally 1975-1978 GMC G25 Rally STX 1975-1978 GMC G25 Vandura 1970-1972 GMC G25/G2500 Van Base 1968-1969,1973 GMC G25/G2500 Van Rally 1968-1969,1973 GMC G25/G2500 Van Vandura 1987-1988 GMC G3500 Magnavan 1987-1988 GMC G3500 Rally Custom 1970-1991 GMC Jimmy Base 1975-1985 GMC Jimmy High Sierra 1975-1990 GMC Jimmy Sierra Classic 1975-1982 GMC Jimmy Sierra Grande 1978-1982 GMC Jimmy Street Coupe 1967-1974 GMC K15/K1500 Pickup Base 1979-1986 GMC K1500 Base 1979-1986 GMC K1500 High Sierra 1988-1993 GMC K1500 Sierra 1979-1986 GMC K1500 Sierra Classic 1979-1982 GMC K1500 Sierra Grande 1994-1995 GMC K1500 Sierra SL 1988-1995 GMC K1500 Sierra SLE 1995 GMC K1500 Sierra SLS 1994-1995 GMC K1500 Sierra SLT 1988-1993 GMC K1500 Sierra SLX 1994-1995 GMC K1500 Sierra Special 1993 GMC K1500 Sierra Sport 1967-1968 GMC K25/K2500 Pickup Base 1971-1973 GMC Sprint Base 1972-1973 GMC Sprint Custom 1987-1991 GMC V1500 Suburban Base 1987 GMC V1500 Suburban High Sierra 1987-1989 GMC V1500 Suburban Sierra Classic 1990 GMC V1500 Suburban SLE 1978-1980 Pontiac Grand Am Base 1975 Pontiac Grand LeMans Base 1975 Pontiac Grand LeMans Safari ## Details - **Price:** 896.96 CAD - **Vendor:** COMP Cams - **Type:** Rocker Arms ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 896.96 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Logo Image - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/comp-cams-rockers-cs-1-5-1-2in-ultra-pro) > Updated: 2026-06-26