COMP Cams Big Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .500"/.486" Duration 295/313 RPM Range 2500 to 6400
249-CL12-602-4
Items You Need
Chevy 262-400ci Small Block 1958-98
265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Specifications:
Thumpr Camshafts are the hottest cams to hit the streets in more than a decade. That's because they give you the big cam sound you're looking for, without the drawbacks. Applying a camshaft design originally created for sports car endurance racing, they incorporate early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap. Best of all, Thumprs will not negatively impact power output or streetability.
Features: Thumpr Sound Clip  |
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 CL12-602-4 fit your vehicle?
1980 CHEVROLET K20
- Liter: 6.6
- SubModel: CUSTOM DELUXE
- Aspiration: NATURALLY ASPIRATED
- CUI: 400
- Engine Type: V8 ( 6.6L / 400 )
- Engine Vin: X
1973 CHEVROLET G20 VAN
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: Z
1978 GMC K25 SUBURBAN
- Liter: 5
- SubModel: HIGH SIERRA
- Aspiration: NATURALLY ASPIRATED
- CUI: 305
- Engine Type: V8 ( 5L / 305 )
- Engine Vin: U
1977 OLDSMOBILE OMEGA
- Liter: 5.7
- SubModel: DELUXE
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1971 GMC G25/G2500 VAN
- Liter: 4.1
- SubModel: VANDURA
- Aspiration: NATURALLY ASPIRATED
- CUI: 250
- Engine Type: L6 ( 4.1L / 250 )
- Engine Vin: C
1984 GMC C1500 SUBURBAN
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: Z
1971 GMC G35/G3500 VAN
- Liter: 5.7
- SubModel: VANDURA
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: -
1969 CHEVROLET K20 PICKUP
- Liter: 5
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 307
- Engine Type: V8 ( 5L / 307 )
- Engine Vin: E
1983 GMC G3500
- Liter: 5.7
- SubModel: RALLY CAMPER SPECIAL
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: M
1980 GMC C2500
- Liter: 4.8
- SubModel: SIERRA GRANDE
- Aspiration: NATURALLY ASPIRATED
- CUI: 292
- Engine Type: L6 ( 4.8L / 292 )
- Engine Vin: T
1985 GMC G3500
- Liter: 5.7
- SubModel: RALLY STX
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: M
1980 PONTIAC FIREBIRD
- Liter: 4.3
- SubModel: ESPRIT
- Aspiration: NATURALLY ASPIRATED
- CUI: 265
- Engine Type: V8 ( 4.3L / 265 )
- Engine Vin: S
will this cam work with stock lifters and push rods
Will this fit a 84 Camaro Birlinetta with a crate 350 replacement from the stock engine?
Will this fit with a 96 camaro z28 LT1
Will stock heads work with this cam for the valve clearance
Motor Vehicles
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Tools:
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Electrical Cords
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