COMP Cams Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Complete Kit Lift: .558"/.542"
249-K11-601-8

Items You Need
Chevy 396-454 ci Big Block 1967-96 Non-Factory Roller Block
RPM Operating Range: 2000 to 5800
Cam Grind Number: 291THR7
Duration Advertised: Intake - 291, Exhaust - 311
Duration @ .050'': Intake - 235, Exhaust - 249
Valve Lift: Intake - .558, Exhaust - .542
Lobe Sep. Angle: 107°
Chevelle, Camaro, Corvette, Stingray, Silverado, C10, Firebird, Chevrolet, Big Block, Chevy, BBC, 454, 427, 502, 396, Caprice, Malibu, Impala, Nova, Monte Carlo, S10, 572
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Specifications:
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.
Does COMP Cams K11-601-8 fit your vehicle?
1978 CHEVROLET C20 SUBURBAN
- Liter: 7.4
- SubModel: CUSTOM DELUXE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: S
1995 GMC C2500 SUBURBAN
- Liter: 7.4
- SubModel: SLT
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: N
1985 GMC K3500
- Liter: 7.4
- SubModel: HIGH SIERRA
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: W
1994 CHEVROLET K2500
- Liter: 7.4
- SubModel: WT
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: N
1995 GMC C3500
- Liter: 7.4
- SubModel: SIERRA SL
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: N
1971 GMC SPRINT
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: E
1973 CHEVROLET EL CAMINO
- Liter: 7.4
- SubModel: CUSTOM
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: Y
1974 CHEVROLET C20 PICKUP
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: L
1971 CHEVROLET CORVETTE
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: -
1986 GMC C3500
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: W
1973 CHEVROLET K20 SUBURBAN
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: Z
1973 CHEVROLET BLAZER
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: Z
Motor Vehicles
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Tools:
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Electrical Cords
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.