Competition Cams 1601-1 Ultra Pro Magnum Roller Rocker Arm

This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.52 ratio, this rocker fits Chevrolet Small Block and V6 with a 3/8" diameter stud.

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As LS engines continue to grow in popularity, COMP Cams(R) has expanded its line of rocker arms to build components specific to LS applications. New Ultra Pro Magnum(TM) Rockers are made from investment-cast 8650 Chromemoly steel, utilize upgraded Trunions and needle bearings over stock and are stronger, stiffer and more durable than the stock parts. They also feature a 1.8 ratio (compared to the stock rockers' 1.7) and utilize a roller tip instead of a slider. The higher ratio and increased stiffness make these rockers a great option for increasing lift without changing cams. This increased stiffness, along with the upgraded Trunion package and roller wheel, also makes them a perfect choice when running aftermarket valve springs. The rockers are available in a bolt-down design that uses stock rocker stands and in a stud-mount option for customers looking for an adjustable valve train. The stud-mount version is perfect for individuals running mechanical lifters as well. COMP Cams(R) LS Ultra Pro Mangum(TM) Rockers Arms are available for LS1, LS2, LS3, LS6 and LS-based truck engines and come in individual sets or kits featuring studs and guide plates. Kits do not include pushrods, but they are available separately.

• 8650 Chromemoly Steel
• 29 Percent Stronger Than Pro Magnum
• Redesigned Steel Stud Mount Rocker
• Reduced Weight And Greater Strength
• Increased High RPM Stability
• Black Oxide Exterior Finish
• Increased Retainer And Valve Spring Clearances
• Lifetime Warranty

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Application Summary:

Year	Make/Model
1977-1980	Buick Century
1991-1993	Buick Commercial Chassis
1978	Buick LeSabre
1977-1980	Buick Regal
2002-2007	Buick Rendezvous
1991-1993	Buick Roadmaster
1977-1979	Buick Skylark
2005-2007	Buick Terraza
1990-1992	Cadillac Brougham
1992-1993	Cadillac Commercial Chassis
1980	Cadillac Eldorado
1993	Cadillac Fleetwood
1980	Cadillac Seville
1975-1982	Checker Marathon
1985-2005	Chevrolet Astro
1955-1975	Chevrolet Bel Air
1958-1972	Chevrolet Biscayne
1969-1974	Chevrolet Blazer
1987-2005	Chevrolet Blazer
1969-1972	Chevrolet Brookwood
1975-1986	Chevrolet C10
1961-1974	Chevrolet C10 Pickup
1968-1986	Chevrolet C10 Suburban
1988-1998	Chevrolet C1500
1992-1995	Chevrolet C1500 Suburban
1975-1986	Chevrolet C20
1961-1974	Chevrolet C20 Pickup
1968-1986	Chevrolet C20 Suburban
1988-1995	Chevrolet C2500
1992-1995	Chevrolet C2500 Suburban
1975-1986	Chevrolet C30
1961-1974	Chevrolet C30 Pickup
1988-1995	Chevrolet C3500
1967-1973	Chevrolet Camaro
1975-1995	Chevrolet Camaro
1966-1996	Chevrolet Caprice
1964-1973	Chevrolet Chevelle
1963-1968	Chevrolet Chevy II
1955-1972	Chevrolet Corvette
1974-1982	Chevrolet Corvette
1984-1991	Chevrolet Corvette
1958	Chevrolet Del Ray
1959-1960	Chevrolet El Camino
1964-1987	Chevrolet El Camino
2005-2007	Chevrolet Equinox
1996-2007	Chevrolet Express 1500
1996-2005	Chevrolet Express 2500
1975-1995	Chevrolet G10
1968-1974	Chevrolet G10 Van
1975-1995	Chevrolet G20
1968-1974	Chevrolet G20 Van
1975-1996	Chevrolet G30
1970-1974	Chevrolet G30 Van
1959-1985	Chevrolet Impala
2000-2007	Chevrolet Impala
1975-1986	Chevrolet K10
1961-1974	Chevrolet K10 Pickup
1968-1986	Chevrolet K10 Suburban
1988-1998	Chevrolet K1500
1992-1995	Chevrolet K1500 Suburban
1975-1986	Chevrolet K20
1961-1974	Chevrolet K20 Pickup
1968-1986	Chevrolet K20 Suburban
1988-1995	Chevrolet K2500
1992-1995	Chevrolet K2500 Suburban
1977-1986	Chevrolet K30
1968-1974	Chevrolet K30 Pickup
1988-1995	Chevrolet K3500

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