Chevy 396-454 ci Big Block 1967-96 Non-Factory Roller Block
RPM Operating Range: 2500 to 6100
Cam Grind Number: 299THR7
Duration Advertised: Intake - 299, Exhaust - 319
Duration @ .050'': Intake - 243, Exhaust - 257
Valve Lift: Intake - .570, Exhaust - .554
Lobe Sep. Angle: 107°
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
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Thumpr Camshafts are available in three different grind profiles, each one of which will produce a rough, racy exhaust note and impressive amounts of horsepower and torque at a different rpm range. Their cutting-edge hydraulic roller design means that they will deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance. So look no further than the Thumpr line of camshafts - engineered to deliver that much sought-after ''thumping'' idle quality to everyone.Features:
Camshaft & Lifter Kits are indicated by a CL in their part number and include Camshaft, Lifters, Assembly Lube, Decals, and Instructions.
Complete Kits are indicated by a K in their part number and include Camshaft, Lifters, Timing Chain & Gears, Valve Springs, Retainers, Locks, Assembly Lube, Decals, and Instructions.
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