Chevy Big Block
1970-72 Chevy 402 Mark IV
1966-69 Chevy 427 Mark IV
1970-90 Chevy 454 Mark IV
1991-95 Chevy 454 Gen V
1996-00 Chevy 454 Gen VI - Designed to fit hydraulic flat tappet camshafts
396; 402; 427; 454; 496; 502; 572; 632; Chevrolet; BBC; Big Block Chevy; Big Block Chevrolet; Chevelle; Corvette; Mark IV; GEN 4; Monte Carlo; Caprice; Sprint; Nova; Camaro; Firebird; L78; Z16; L37; L34; L35; L37; L66; LS3; L34; L35; L37; L66; COPO; ZL1; C10; K10
Our rocker arm and pushrod kit for Chevrolet 396-454 Big Block includes a set of our 1.72 ratio Magnum rockers, 8.280" long intake and 9.252" long exhaust High Energy pushrods.
Designed with the serious performance enthusiast in mind...
Magnum Roller Rocker Arms are the ultimate street rocker arms, helping your engine make more power and last longer.
Made from 8620 chromemoly steel, Magnum Roller Rocker Arms are stronger than die cast aluminum or stamped steel rockers. Their stiffness guarantees maximum lift because the arms will not flex.
When your car's rocker ratio is off, you won't get maximum horsepower from the engine. Some rockers are as much as .040'' short on lift while Magnum Roller Rockers are dead-on each time.
Magnum Roller Rockers make between 15 and 30 horsepower over other rockers because, combined with their stiff design, the roller tips reduce friction, yielding more effective valve lift.
The roller tip design reduces friction by not scrubbing the valve end or pushing the valve stem hard against the valve guide, which extends rocker life.
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.