Competition Cams 1828-1 Ultra Pro Magnum XD Roller Rocker Arm

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. This 1828 rocker features a 1.8 ratio for use with 7/16" stud Chevrolet 396-454 Big Block.

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The Ultra Pro Magnum(TM) XD Rocker Arms are engineered from durable 8650 steel that outlasts and outperforms other inferior knock-off and import rockers. A unique machined billet pushrod seat insert offers exceptional durability. These new stud mount rockers are fully rebuildable and use precision-sorted needle bearings and hardened roller tips to better distribute the load and reduce wear for a longer service life. In addition, they work with most diameter springs and retainers. The XD design utilizes advanced FEA and CAD design and development to improve strength, stiffness and MOI optimization for endurance, drag and circle track applications. These rocker arms are so durable that they come with a lifetime guarantee against breakage. Only accept authentic "COMP" logo rocker arms to ensure quality and reliability.

• 8650 Steel Construction
• Outlasts And Outperforms Other Rockers
• Unique Machined Billet Pushrod Seat
• FEA And CAD Development
• Improved Strength And Stiffness
• Rebuildable Design
• Engineered For Use In Endurance/Circle/Drag Race
• Lifetime Warranty

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Application Summary:

Year	Make/Model
1967-1975	Chevrolet Bel Air
1967-1972	Chevrolet Biscayne
1973-1974	Chevrolet Blazer
1969-1972	Chevrolet Brookwood
1975-1980	Chevrolet C10
1968-1974	Chevrolet C10 Pickup
1968-1980	Chevrolet C10 Suburban
1975-1986	Chevrolet C20
1968-1974	Chevrolet C20 Pickup
1968-1986	Chevrolet C20 Suburban
1975-1986	Chevrolet C30
1968-1974	Chevrolet C30 Pickup
1967-1972	Chevrolet Camaro
1967-1976	Chevrolet Caprice
1967-1973	Chevrolet Chevelle
1968	Chevrolet Chevy II
1967-1974	Chevrolet Corvette
1967-1975	Chevrolet El Camino
1969-1970	Chevrolet Estate
1973-1974	Chevrolet G10 Van
1976	Chevrolet G20
1973-1974	Chevrolet G20 Van
1975-1976	Chevrolet G30
1973-1974	Chevrolet G30 Van
1967-1976	Chevrolet Impala
1976	Chevrolet K10
1980	Chevrolet K10
1968-1974	Chevrolet K10 Pickup
1968-1974	Chevrolet K10 Suburban
1976-1978	Chevrolet K20
1968-1974	Chevrolet K20 Pickup
1968-1974	Chevrolet K20 Suburban
1985	Chevrolet K20 Suburban
1977	Chevrolet K30
1980-1986	Chevrolet K30
1968-1974	Chevrolet K30 Pickup
1976-1978	Chevrolet K5 Blazer
1969-1972	Chevrolet Kingswood
1973-1975	Chevrolet Laguna
1967	Chevrolet Malibu
1973-1975	Chevrolet Malibu
1970-1975	Chevrolet Monte Carlo
1969-1972	Chevrolet Nova
1973	Chevrolet P10 Van
1976	Chevrolet P20
1979	Chevrolet P20
1970-1971	Chevrolet P20 Van
1973	Chevrolet P20 Van
1975-1989	Chevrolet P30
1970-1971	Chevrolet P30 Van
1973-1974	Chevrolet P30 Van
1987-1988	Chevrolet R30
1989	Chevrolet R3500
1969-1972	Chevrolet Townsman
1987-1988	Chevrolet V30
1989	Chevrolet V3500
1972-1979	Excalibur Phaeton
1975-1978	GMC C15
1975-1978	GMC C15 Suburban
1968-1974	GMC C15/C1500 Pickup
1968-1974	GMC C15/C1500 Suburban
1979-1980	GMC C1500
1979-1980	GMC C1500 Suburban
1975-1978	GMC C25
1975-1978	GMC C25 Suburban
1968-1974	GMC C25/C2500 Pickup
1968-1974	GMC C25/C2500 Suburban
1979-1986	GMC C2500
1979-1986	GMC C2500 Suburban
1975-1978	GMC C35
1968-1974	GMC C35/C3500 Pickup
1979-1986	GMC C3500
1975-1976	GMC G25

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