COMP Cams Thumpr Hydraulic Flat Tappet Camshaft Lift .479"/.465" Duration 279/297 RPM Range 2000 to 5800
249-12-600-4
Items You Need
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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
High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping 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 12-600-4 fit your vehicle?
1973 GMC SPRINT
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1972 GMC G25/G2500 VAN
- Liter: 4.1
- SubModel: VANDURA
- Aspiration: NATURALLY ASPIRATED
- CUI: 250
- Engine Type: L6 ( 4.1L / 250 )
- Engine Vin: D
1971 CHEVROLET EL CAMINO
- Liter: 5
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 307
- Engine Type: V8 ( 5L / 307 )
- Engine Vin: -
1980 GMC C2500
- Liter: 7.4
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: S
1979 GMC P3500
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1969 CHEVROLET CHEVELLE
- Liter: 6.5
- SubModel: CONCOURS
- Aspiration: NATURALLY ASPIRATED
- CUI: 396
- Engine Type: V8 ( 6.5L / 396 )
- Engine Vin: -
1985 CHEVROLET K20 SUBURBAN
- Liter: 7.4
- SubModel: CUSTOM
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: W
1979 CHEVROLET C10 SUBURBAN
- Liter: 5.7
- SubModel: SCOTTSDALE
- Aspiration: NATURALLY ASPIRATED
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1968 GMC C25/C2500 PICKUP
- Liter: 5.3
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 327
- Engine Type: V8 ( 5.3L / 327 )
- Engine Vin: -
1985 CHEVROLET C20 SUBURBAN
- Liter: 7.4
- SubModel: SILVERADO
- Aspiration: NATURALLY ASPIRATED
- CUI: 454
- Engine Type: V8 ( 7.4L / 454 )
- Engine Vin: W
1971 CHEVROLET K20 SUBURBAN
- Liter: 4.1
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 250
- Engine Type: L6 ( 4.1L / 250 )
- Engine Vin: L
1983 CHEVROLET EL CAMINO
- Liter: 3.8
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- CUI: 231
- Engine Type: V6 ( 3.8L / 231 )
- Engine Vin: A
Can you use this cam with a standard transmission?
What rocker arms do you need to run this cam?
Not sure what kind of converter I have, just got the car, seems pretty stock. 71 nova 350 with a 350 auto, would i still be able to use this cam?
Can you run this cam with stock valvesprings
Would this Cam require a stall torque converter to keep the engine from stalling when you put it in gear.
What lifters do I need to go with this?
will this cam work with part # 723-2169k heads? Thank You for your time.
estimated horsepower gain?
Motor Vehicles
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Tools:
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Electrical Cords
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