Ultra Pro Magnum Roller Rocker Arms for Chevy

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Ultra Pro Magnumâ„¢ Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnums but they also take Stud mount Rocker performance, stability and value to a whole new level. The 8650 chromemoly material and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance. A unique black oxide exterior finish helps prevent corrosion and increases durability. Featuring Oversized trunnions, precision-sorted needle bearings and hardened Roller tips for the ultimate in performance and dependability. Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.

• Chevy V8 348-409 c.i.d. - 3/8" Stud - 1.7 Ratio
• Investment cast 8650 chromemoly body and arched, web-like design deliver increased strength and rigidity while still reducing the moment of inertia. Unique black oxide exterior finish helps prevent corrosion and increases durability.
• Optimized retainer and valve spring clearances allow for use of most diameter springs, retainers and +.050" locks without clearance or fitment issues.
• Feature Oversized trunnions, precision-sorted needle bearings and hardened Roller tips.
• Lifetime Warranty - So strong that we guarantee the Rocker bodies against breakage for life. For use with up to 850 lbs of open spring pressure.

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Application Summary:

Year	Make/Model
1963	Chevrolet Bel Air
1965-1975	Chevrolet Bel Air
1963	Chevrolet Biscayne
1965-1972	Chevrolet Biscayne
1973	Chevrolet Blazer
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
1966-1976	Chevrolet Caprice
1965-1973	Chevrolet Chevelle
1968	Chevrolet Chevy II
1966-1974	Chevrolet Corvette
1966-1975	Chevrolet El Camino
1973-1974	Chevrolet G10 Van
1976	Chevrolet G20
1973-1974	Chevrolet G20 Van
1975-1976	Chevrolet G30
1973-1974	Chevrolet G30 Van
1963	Chevrolet Impala
1965-1976	Chevrolet Impala
1976	Chevrolet K10
1979-1980	Chevrolet K10
1968-1969	Chevrolet K10 Pickup
1974	Chevrolet K10 Pickup
1968-1972	Chevrolet K10 Suburban
1976-1978	Chevrolet K20
1980	Chevrolet K20
1968-1969	Chevrolet K20 Pickup
1973-1974	Chevrolet K20 Pickup
1973	Chevrolet K20 Suburban
1985	Chevrolet K20 Suburban
1977	Chevrolet K30
1980-1986	Chevrolet K30
1968-1971	Chevrolet K30 Pickup
1973-1974	Chevrolet K30 Pickup
1976-1978	Chevrolet K5 Blazer
1970-1972	Chevrolet Kingswood
1973-1975	Chevrolet Laguna
1966-1967	Chevrolet Malibu
1973-1975	Chevrolet Malibu
1970-1975	Chevrolet Monte Carlo
1969-1970	Chevrolet Nova
1987-1988	Chevrolet R30
1989	Chevrolet R3500
1970	Chevrolet Townsman
1972	Chevrolet Townsman
1987-1988	Chevrolet V30
1989	Chevrolet V3500
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
1968-1972	GMC C25/C2500 Suburban
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
1976	GMC G35
1973	GMC Jimmy