COMP Cams Nitrided Camshaft CB 287T H7 for Chevrolet Big Block 396-454 Engines

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

The COMP Cams CB 287T H7 is a high-performance nitrided camshaft designed specifically for Chevrolet Gen IV 396-454 big block engines that originally came with flat tappet cams. This camshaft is engineered to produce an aggressive, deep exhaust note at idle, making it an ideal upgrade for muscle cars and street rods seeking a bold exhaust sound. Its advanced design features early intake valve opening and long exhaust duration, creating optimal overlap to enhance power and torque across a broad RPM range. This results in significant horsepower gains and a strong torque curve, making it suitable for street/strip applications that demand high performance.
The COMP Cams CB 287T H7 requires an aftermarket torque converter and lower gear ratio to ensure the engine remains in its powerband, especially during spirited driving. Its design also reduces vacuum at idle, necessitating the use of a vacuum canister, pump, or hydroboost for vehicles with power brakes. The camshaft's nitrided surface provides increased durability and wear resistance, ensuring long-lasting performance under demanding conditions. This part is ideal for engines with at least 9:1 compression, with recommendations for use alongside a 2500+ stall converter, intake, gears, and headers to maximize its performance potential.
Please note that this camshaft is not carburetor approved and requires carb acknowledgment during installation. It is a non-California compliant product, suitable for high-performance applications where emissions standards are not a primary concern. Designed for enthusiasts looking to elevate their engine's performance with a durable, aggressive camshaft, the COMP Cams CB 287T H7 is a perfect upgrade for street and strip vehicles aiming for maximum power output and an unmistakable exhaust tone.

Features:

• Aggressive exhaust note at idle for a sporty sound

• Early intake valve opening and long exhaust duration for broad torque and horsepower gains

• Requires aftermarket torque converter and lower gear ratio for optimal performance

• Reduces vacuum at idle, suitable for power brake systems with vacuum canister or hydroboost

• Nitrided surface for increased durability and wear resistance

• Designed for Chevrolet Gen IV 396-454 big block engines originally equipped with flat tappet cams

• Ideal for street/strip applications with high compression and performance upgrades