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COMP Cams Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .500"/.486" Duration 287/304 RPM Range 2200-6100

COMP Cams CL10-603-5

249-CL10-603-5

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COMP Cams Mutha" Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit Lift .500"/.486" Duration 287/304 RPM Range 2200-6100 $246.99
Mutha' Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit
Lift .500"/.486"
Duration 287/304
RPM Range 2200-6100

COMP Cams CL10-603-5 Details

AMC 290-401

Mutha' Thumpr™ - High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Specifications:

Exhaust Valve Lift (in.)
0.486
Intake Valve Lift (in.)
0.500
Int. Duration @ .050 in. (Deg)
235
Exh. Duration @ .050 in. (Deg)
249
Int. Duration Advertised (Deg)
287
Exh. Duration Advertised (Deg)
304
Engine Make/Size
AMC 290-401
Lifter Type
Hydraulic Flat Tappet
Usage
Street/Strip
RPM Range
2200-6100
Gaskets Included
No
Advertised Duration
287 int./304 exh.
Advertised Exhaust Duration
304
Advertised Intake Duration
287
Assembly Lubricant Included
Yes
Basic Operating RPM Range
2,200-6,100
Cam Style
Hydraulic flat tappet
Computer-Controlled Compatible
No
Duration at 050 inch Lift
235 int./249 exh.
Exhaust Duration at 050 inch Lift
249
Exhaust Valve Lift with Factory Rocker Arm Ratio (
0.486
Grind Number
287TH7
Intake Duration at 050 inch Lift
235
Intake Valve Lift with Factory Rocker Arm Ratio (i
0.5
Lifter Style
Hydraulic flat tappet
Lifters Included
Yes
Locks Included
No
Pushrods Included
No
Quantity
Sold as a kit
Retainers Included
No
Rocker Arms Included
No
Timing Chain and Gears Included
No
Valve Lift with Factory Rocker Arm Ratio
0.500 int./0.486 exh.
Valve Springs Included
No
Valve Springs Required
Yes
Valve Stem Seals Included
No
Lobe Separation (Deg)
107
Manufacturer's Part Number:
CL10-603-5

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:
  • Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods
  • Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note
  • Best with aftermarket converters and more rear gear


    Thumpr Sound ClipClick to Listen

    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 CL10-603-5 fit your vehicle?

    Narrow Results

    1969 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: DPL
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1967 AMERICAN MOTORS AMERICAN

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1967 AMERICAN MOTORS REBEL

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • SubModel: SST
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1979 AMERICAN MOTORS PACER

    • Liter: 5.0
    • SubModel: LIMITED
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1968 AMERICAN MOTORS REBEL

    • CC: 4753
    • Liter: 4.7
    • SubModel: 550
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1969 AMERICAN MOTORS RAMBLER

    • EngineType: ALL
    • SubModel: HURST SC/RAMBLER

    1966 AMERICAN MOTORS AMBASSADOR

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1975-1976 AMERICAN MOTORS MATADOR

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1973 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970-1971 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • SubModel: SST
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1971-1974 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: SPORTABOUT
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1967-1969 AMERICAN MOTORS AMBASSADOR

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1972-1974 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971-1972 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SST
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS REBEL

    • EngineType: ALL
    • SubModel: MACHINE

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • SubModel: 440
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968-1969 AMERICAN MOTORS JAVELIN

    • CC: 5585
    • Liter: 5.6
    • SubModel: SST
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1968 AMERICAN MOTORS AMBASSADOR

    • CC: 5585
    • Liter: 5.6
    • SubModel: SST
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1972-1973 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1969-1971 AMERICAN MOTORS AMBASSADOR

    • EngineType: ALL
    • SubModel: SST

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • Liter: 4.8
    • SubModel: DPL
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1966 AMERICAN MOTORS CLASSIC

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1979 AMERICAN MOTORS PACER

    • Liter: 5.0
    • SubModel: DL
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1975-1978 AMERICAN MOTORS MATADOR

    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1979 AMERICAN MOTORS SPIRIT

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1968 AMERICAN MOTORS AMBASSADOR

    • Liter: 4.8
    • SubModel: SST
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • CC: 4753
    • Liter: 4.7
    • SubModel: DPL
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1971-1974 AMERICAN MOTORS MATADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS AMBASSADOR

    • EngineType: ALL
    • SubModel: DPL

    1975-1977 AMERICAN MOTORS HORNET

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1973-1974 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS AMX

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969-1970 AMERICAN MOTORS REBEL

    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1970-1974 AMERICAN MOTORS JAVELIN

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SC/360
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.1
    • SubModel: BASE
    • CUI: 309
    • EngineType: V8 ( 5.1 L / 309 )

    1970-1971 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1966 AMERICAN MOTORS MARLIN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • SubModel: ROGUE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • SubModel: 440
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1971 AMERICAN MOTORS AMBASSADOR

    • CC: 4983
    • Liter: 5.0
    • SubModel: DPL
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1971-1974 AMERICAN MOTORS JAVELIN

    • CC: 6572
    • Liter: 6.6
    • SubModel: AMX
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1972-1974 AMERICAN MOTORS AMBASSADOR

    • EngineType: ALL
    • SubModel: ALL

    1971-1972 AMERICAN MOTORS JAVELIN

    • CC: 6572
    • Liter: 6.6
    • SubModel: SST
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1974 AMERICAN MOTORS MATADOR

    • CC: 4983
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1968 AMERICAN MOTORS REBEL

    • CC: 5585
    • Liter: 5.6
    • SubModel: 550
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1975 AMERICAN MOTORS GREMLIN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1973-1974 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1974 AMERICAN MOTORS MATADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968-1969 AMERICAN MOTORS AMBASSADOR

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1966 AMERICAN MOTORS AMBASSADOR

    • Liter: 5.4
    • SubModel: 990
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1976 AMERICAN MOTORS GREMLIN

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1978 AMERICAN MOTORS PACER

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1969 AMERICAN MOTORS AMBASSADOR

    • Liter: 5.1
    • SubModel: BASE
    • CUI: 309
    • EngineType: V8 ( 5.1 L / 309 )

    1968-1969 AMERICAN MOTORS JAVELIN

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1973 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1968-1970 AMERICAN MOTORS JAVELIN

    • CC: 6391
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 5.1
    • SubModel: SST
    • CUI: 309
    • EngineType: V8 ( 5.1 L / 309 )

    1971-1974 AMERICAN MOTORS JAVELIN

    • CC: 5900
    • Liter: 5.9
    • SubModel: AMX
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970-1971 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970-1972 AMERICAN MOTORS HORNET

    • CC: 4983
    • Liter: 5.0
    • SubModel: SST
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS REBEL

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1967-1968 AMERICAN MOTORS REBEL

    • Liter: 5.6
    • SubModel: 770
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1971 AMERICAN MOTORS AMBASSADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: DPL
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968 AMERICAN MOTORS REBEL

    • EngineType: ALL
    • SubModel: SST

    1968 AMERICAN MOTORS REBEL

    • Liter: 4.8
    • SubModel: 770
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1978-1979 AMERICAN MOTORS AMX

    • CC: 4982
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1971-1974 AMERICAN MOTORS JAVELIN

    • CC: 6572
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968 AMERICAN MOTORS AMERICAN

    • CC: 4753
    • Liter: 4.7
    • SubModel: ROGUE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968 AMERICAN MOTORS AMBASSADOR

    • CC: 4753
    • Liter: 4.7
    • SubModel: SST
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1967 AMERICAN MOTORS MARLIN

    • CC: 5585
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 343
    • EngineType: V8 ( 5.6 L / 343 )

    1968-1969 AMERICAN MOTORS AMX

    • EngineType: ALL
    • SubModel: ALL

    1970 AMERICAN MOTORS AMX

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971-1974 AMERICAN MOTORS MATADOR

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS REBEL

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1967 AMERICAN MOTORS REBEL

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1968-1970 AMERICAN MOTORS JAVELIN

    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1978-1979 AMERICAN MOTORS CONCORD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970 AMERICAN MOTORS REBEL

    • Liter: 5.9
    • SubModel: SST
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1974 AMERICAN MOTORS MATADOR

    • EngineType: ALL
    • SubModel: X

    1968-1969 AMERICAN MOTORS JAVELIN

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1967 AMERICAN MOTORS MARLIN

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1971 AMERICAN MOTORS AMBASSADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: DPL
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 AMERICAN MOTORS REBEL

    • Liter: 4.8
    • SubModel: SST
    • CUI: 290
    • EngineType: V8 ( 4.8 L / 290 )

    1971 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: BASE
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS AMBASSADOR

    • CC: 4983
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1975-1977 AMERICAN MOTORS MATADOR

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1975-1977 AMERICAN MOTORS HORNET

    • Liter: 5.0
    • SubModel: SPORTABOUT
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1970-1972 AMERICAN MOTORS JAVELIN

    • CC: 5900
    • Liter: 5.9
    • SubModel: SST
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1971-1974 AMERICAN MOTORS MATADOR

    • CC: 6572
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 401
    • EngineType: V8 ( 6.6 L / 401 )

    1968 AMERICAN MOTORS AMBASSADOR

    • CC: 6391
    • Liter: 6.4
    • SubModel: SST
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1972 AMERICAN MOTORS JAVELIN

    • CC: 4983
    • Liter: 5.0
    • Aspiration: N
    • SubModel: SST
    • Engine Vin: H
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )

    1973 AMERICAN MOTORS HORNET

    • CC: 5900
    • Liter: 5.9
    • SubModel: SPORTABOUT
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1969 AMERICAN MOTORS RAMBLER

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1967-1969 AMERICAN MOTORS AMBASSADOR

    • CC: 4753
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 290
    • EngineType: V8 ( 4.7 L / 290 )

    1974 AMERICAN MOTORS MATADOR

    • CC: 5900
    • Liter: 5.9
    • SubModel: BROUGHAM
    • CUI: 360
    • EngineType: V8 ( 5.9 L / 360 )

    1970 AMERICAN MOTORS REBEL

    • Liter: 5.0
    • SubModel: SST
    • CUI: 304
    • EngineType: V8 ( 5.0 L / 304 )
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations