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COMP Cams is proud to announce another industry first: a bolt-in-ready Bushed Shaft Rocker System for GM LS engines. Thanks to innovative engineering, this patent pending Bushed Shaft Rocker System increases valve train stability and durability while decreasing deflection and providing bolt-in convenience for LS1, LS3 and LS7 cylinder heads. The COMP Cams Bushed Shaft Rocker System improves valve train stability and durability by securing all eight rocker arms onto a single rocker shaft. Thin tri-layer rocker arm bushings reduce rocker arm deflection and eliminate the high Hertz loading that can occur in needle bearing equipped rockers. Reduced rocker deflection increases valve train stiffness, ensuring that your LS is more efficient and durable under high loads. COMP Cams engineers worked to ensure long-term valve train durability by perfecting rocker to valve stem geometry and provisioning for supplementary pressurized oiling via threaded ends on the rocker shafts. Additionally, each rocker shaft is Plasma Nitrided, further increasing the system’s durability even when used with aggressive solid roller valve trains. The COMP Cams Bushed Shaft Rocker System for GM LS delivers high-level valve train stability, precise fitment, truer valve train geometry and increased load-bearing capacity in a package that is ready to bolt in that requires no machine work.
This pair of Max-Lift BSR Shaft Mount Rockers for Raised Rectangle Port LS7 engines is a bolt-in rocker upgrade that requires no machine work to install. Clears factory valve covers while greatly increasing valvetrain rigidity.
See 1982-16 for LS3/L92. See 1981-16 for Cathedral Port LS engines.
Chevrolet: Camaro 14 – 15 7 L Engine, Chevrolet: Corvette 06 – 13 7 L Engine -
GM Solid Roller lifters for LSX/Warhawk blocks, cutaway body with oil band, set of 16 lifters. NOTE: Representational Photo of Typical Lifter Set
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GM Gen III/LS1/LS2/LS6 Solid Roller lifters – NOT for street use – cutaway body with oil band, set of 16 lifters. NOTE: Representational Photo of Typical Lifter Set
Endure-X Solid Roller Lifters for GM LS Gen III LS1/LS2/LS6, .842″ Diameter, Centered – Set of 16 -
Sportsman Lifters from COMP Cams are designed to be a premium and lighter weight upgrade over Endure-X Lifters and a value alternative to the Elite Race option. Sportsman Lifters are offered in two configurations: a standard/traditional needle bearing axle/wheel design or an optional bronze bushing axle/wheel setup. And for Chevrolets, there are also left or right offset pushrod seat options. Each design features two pressurized EDM oil feeds to the axle, along with an edge orifice feed to the wheel. This design delivers a more reliable oil feed than most other options on the market. Sportsman Lifters also feature a shallower oil band than competitors’ versions for increased strength and rigidity, while internal machining helps to reduce weight. The body design utilizes a skirted wheel that strengthens the lifter ears and also provides more contact area with the lifter bore for further lifter stability. In addition, staked axles eliminate clips and provide robust axle retention. This permanent axle retention feature increases the stiffness of the lifter ears and helps prevent the ears from spreading. Sportsman Lifters are built from 8620 premium steel for increased strength and wear resistance and feature a captured link bar design. They utilize a tapered and slotted link bar tower for reduced weight and improved aesthetics. The lifters also feature a tall body to enable use in both standard and .300″ tall lifter bores – the result is increased strength and less lifter bore wear.
Sportsman Solid Roller Lifters with Bearings for GM Gen III/IV LS, .842″ Diameter, Centered – Set of 16
Available in a pair under 96956-2. -
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.
High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts -
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts -
Big Mutha’ Thumpr Nitrided 243/257 Hydraulic Flat Cam for Chevrolet Big Block 396-454. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gear and headers, very rough idle.
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts -
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
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Xtreme Energy NIT 224/230 Hydraulic Flat Tappet Cam for Chevy Big Block 396-454 (Nitrided). Good for street machines. A stock converter will work, but best with a 1800+ stall. Slightly rough idle.
Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts -
Xtreme Energy NIT 230/236 Hydraulic Flat Tappet Cam for Chevy Big Block 396-454 (Nitrided). High performance street. Very strong mid-range with headers and a 2200+ stall.
High performance street, very strong mid-range, with headers and 2200+ stall. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts -
Xtreme Energy NIT 240/246 Hydraulic Flat Tappet Cam for Chevy Big Block 396-454 (Nitrided) street/strip Applications.
Street/strip, 2800+ stall, rough idle, 9.5:1+ compression. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts -
Jet w/ A impeller, needs improved intake, likes headers. Nitrided.
Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts
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