Genuine COMP CAM 12-602-4 Big Mutha Thumpr 243/257 Camshaft

Genuine COMP CAM 12-602-4 Big Mutha Thumpr 243/257 Camshaft | LIFT: .500/.486" | High-Performance Lifters | Double Roller Timing | Push Rods | Kit FITS Chevrolet SBC 283 327 350 400 5.7 5.7L
- Maximum "Pro-Street" Sound (107 LSA): Featuring the aggressive 107-degree Lobe Separation Angle and massive overlap, this cam produces a radical, earth-shaking idle. Why Buy It: It is the closest you can get to the sound of a 900-horsepower race engine while still using a hydraulic flat tappet system. It guarantees you are the loudest car at the show.
- THIS LISTING WILL INCLUDE:
- 1)AUTHENTIC COMP CAM 12-602-4 BIG MUTHA THUMPR 243/257 HYDRAULIC CAMSHAFT - Hydraulic Flat Cam for Chevrolet Small Block 262-400. Street/strip, needs 9.5:1 compression, 2800+ stall, intake gears and headers, very rough idle.
- 16) ENGINETECH HIGH-PERFORMANCE HYDRAULIC LIFTERS
- 1) 3-PC DOUBLE ROLLER TIMING SET - True double roller. 3 key crank sprocket. 4 degree crank offset.
- 16) PUSH RODS - 7.794" Length
- High-RPM Dominance (243/257 Duration): With a massive 243 Int / 257 Exh Duration @ .050”, this cam is built for top-end speed. Why Buy It: It shifts the power band to 2,500-6,400 RPM, making it a lethal weapon for drag racing or high-performance street driving in lighter vehicles with deep gears.
- Near-.500 Lift Geometry (.498”/.483”): The lift is pushed to the limit of flat tappet reliability at .498” Intake and .483” Exhaust. Why Buy It: This aggressive lift maximizes the potential of ported iron or aftermarket aluminum cylinder heads, ensuring your engine gets the airflow it needs to make big horsepower numbers.
- Competition Cams Engineering: Designed for Gen 1 SBC V8s, this is the flagship of the Thumpr flat tappet line. Why Buy It: You get race-winning technology for your street car. Critical Fitment Note: Due to the radical duration, this cam produces low vacuum. You MUST use a 2,800+ stall converter and gears; a vacuum canister may be needed for power brakes.

Country	USA
Brand	REDLINE ENGINE SUPPLY
Manufacturer	COMP CAMS / ENGINETECH
ItemPartNumber	12-602-4 L817-16 TS163X EPR34B
Model	12-602-4 L817-16 TS163X EPR34B
Warranty	2 YEAR MANUFACTURER WARRANTY
UnitCount	1
UPCs	676821847188
EANs	0676821847188
ReleaseDate	0000-00-00

Genuine COMP CAM 12-602-4 Big Mutha Thumpr 243/257 Camshaft | LIFT: .500/.486" | High-Performance Lifters | Double Roller Timing | Push Rods | Kit FITS Chevrolet SBC 283 327 350 400 5.7 5.7L

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