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COMP Cams Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Complete Kit Lift: .552"/.537"

COMP Cams K31-602-8

249-K31-602-8

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Estimated to ship directly from the manufacturer on 08/23/18
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COMP Cams Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Complete Kit Lift: .552"/.537" $770.99
Big Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft Complete Kit
  • Lift: .552"/.537"
  • Duration: 299°/319°
  • Lobe Separation Angle: 107°
  • RPM Range: 2500-6200

  • COMP Cams K31-602-8 Details

    Ford 221-302ci 1963-1995 Non-Factory Roller Block

  • Big Mutha Thumpr

  • Complete Kit
  • 3 Grinds To Fit All Of Your Performance Needs
  • Long Exhaust Duration
  • Produces A Powerful Hard-Hitting Exhaust Note
  • Excellent Horsepower Gains And Broad Torque Curve
  • Delivers Real Seat Of The Pants Performance
  • Designed For Use w/Latest In ValveTrain Components
  • 1 Year Limited Warranty

  • Specifications:

    Exhaust Valve Lift (in.)
    0.537
    Intake Valve Lift (in.)
    0.552
    Int. Duration @ .050 in. (Deg)
    243
    RPM Range
    2500-6200
    Exh. Duration @ .050 in. (Deg)
    257
    Int. Duration Advertised (Deg)
    299
    Exh. Duration Advertised (Deg)
    319
    Lifter Type
    Hydraulic Roller Retrofit
    Engine Make/Size
    Ford 221-302
    Usage
    Street/Strip
    Gaskets Included
    No
    Advertised Duration
    299 int./319 exh.
    Advertised Exhaust Duration
    319
    Advertised Intake Duration
    299
    Assembly Lubricant Included
    No
    Basic Operating RPM Range
    2,500-6,200
    Cam Style
    Hydraulic roller tappet
    Computer-Controlled Compatible
    No
    Duration at 050 inch Lift
    243 int./257 exh.
    Exhaust Duration at 050 inch Lift
    257
    Exhaust Valve Lift with Factory Rocker Arm Ratio (
    0.537
    Grind Number
    299THR7
    Intake Duration at 050 inch Lift
    243
    Intake Valve Lift with Factory Rocker Arm Ratio (i
    0.552
    Lifter Style
    Hydraulic roller
    Lifters Included
    Yes
    Locks Included
    Yes
    Outside Diameter of Outer Spring (in.)
    1.43
    Pushrods Included
    No
    Quantity
    Sold as a kit
    Retainers Included
    Yes
    Rocker Arms Included
    No
    Timing Chain and Gears Included
    Yes
    Timing Chain Style
    Double roller
    Valve Lift with Factory Rocker Arm Ratio
    0.552 int./0.537 exh.
    Valve Springs Included
    Yes
    Valve Springs Required
    No
    Valve Stem Seals Included
    Yes
    Lobe Separation (Deg)
    107
    Manufacturer's Part Number:
    K31-602-8

    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:
  • Retro-fit hydraulic roller design will fit all factory flat tappet equipped Small Block Chevy and Ford Windsor
  • 3 grinds to fit all of your cruising and street performance needs
  • Long exhaust duration and other grind characteristics produce a powerful, hard-hitting exhaust note
  • Excellent horsepower gains and broad torque curve deliver real seat of the pants performance
  • Designed for use with the latest in valve train component advancements such as Beehive Valve Springs, Pro Magnum Roller Rockers and Magnum Pushrods

    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 K31-602-8 fit your vehicle?

    Narrow Results

    1977-1978 FORD LTD II

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1981 FORD LTD

    • Liter: 5.0
    • SubModel: COUNTRY SQUIRE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977 MERCURY COUGAR

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1967 MERCURY COUGAR

    • CC: 4727
    • Liter: 4.7
    • SubModel: XR-7
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1980 LINCOLN MARK VI

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1964 FORD GALAXIE 500

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1991-1992 MERCURY COUGAR

    • Liter: 5.0
    • SubModel: LS
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983-1988 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1969 FORD COUNTRY SEDAN

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963 MERCURY COUNTRY CRUISER

    • CC: 3622
    • Liter: 3.6
    • SubModel: BASE
    • CUI: 221
    • EngineType: V8 ( 3.6 L / 221 )

    1975-1977 FORD MAVERICK

    • Liter: 5.0
    • SubModel: GRABBER
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969 MERCURY COUGAR

    • CC: 4950
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BOSS 302
    • Engine Vin: G
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963 FORD GALAXIE 500

    • CC: 4727
    • Liter: 4.7
    • SubModel: SUNLINER
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1973 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • SubModel: MACH I
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1991 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: GS

    1986-1992 LINCOLN MARK VII

    • EngineType: ALL
    • SubModel: ALL

    1984-1985 LINCOLN MARK VII

    • Liter: 5.0
    • SubModel: VERSACE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1991 FORD LTD CROWN VICTORIA

    • EngineType: ALL
    • SubModel: S

    1963-1964 FORD GALAXIE

    • CC: 4261
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1968-1971 FORD TORINO

    • CC: 4949
    • Liter: 5.0
    • SubModel: GT
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1964-1967 MERCURY COMET

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1984-1985 LINCOLN CONTINENTAL

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977-1979 FORD LTD

    • Liter: 5.0
    • SubModel: LANDAU
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1972-1974 FORD GRAN TORINO

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1988 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: XR-7

    1963-1967 FORD GALAXIE 500

    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1964-1967 MERCURY CYCLONE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1963-1967 FORD GALAXIE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1963-1964 FORD FAIRLANE

    • Liter: 4.3
    • SubModel: 500
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1978-1980 LINCOLN VERSAILLES

    • EngineType: ALL
    • SubModel: ALL

    1979 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: HERITAGE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975-1977 FORD MAVERICK

    • CC: 4950
    • Liter: 5.0
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: F
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1975-1980 FORD GRANADA

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1966-1967 MERCURY VOYAGER

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1979-1981 MERCURY GRAND MARQUIS

    • Liter: 5.0
    • SubModel: COLONY PARK
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1964-1967 MERCURY CALIENTE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1978-1979 FORD FAIRMONT

    • Liter: 5.0
    • SubModel: FUTURA
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1973 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • SubModel: GRANDE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1982 MERCURY MARQUIS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1986 FORD LTD

    • Liter: 5.0
    • SubModel: COUNTRY SQUIRE LX
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 FORD FALCON

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1969 FORD GT40

    • CC: 4727
    • Liter: 4.7
    • SubModel: MK III
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1969-1971 FORD TORINO

    • CC: 4949
    • Liter: 5.0
    • SubModel: SQUIRE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1986-1987 LINCOLN CONTINENTAL

    • EngineType: ALL
    • SubModel: ALL

    1963-1964 FORD GALAXIE 500

    • CC: 4261
    • Liter: 4.3
    • SubModel: VICTORIA
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1979 FORD LTD II

    • Liter: 5.0
    • SubModel: LANDAU
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1971 FORD TORINO

    • CC: 4949
    • Liter: 5.0
    • SubModel: 500
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968 MERCURY COUGAR

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1983 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: HERITAGE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1982 FORD MUSTANG

    • Liter: 5.0
    • SubModel: L
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1967 FORD FAIRLANE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1984-1993 FORD MUSTANG

    • Liter: 5.0
    • SubModel: LX
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1985 FORD LTD

    • EngineType: ALL
    • SubModel: LX BROUGHAM

    1979 FORD MUSTANG

    • Liter: 5.0
    • SubModel: GHIA
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1984 FORD MUSTANG

    • Liter: 5.0
    • SubModel: GT
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1964-1967 FORD CUSTOM 500

    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1971-1974 MERCURY COMET

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1986 MERCURY GRAND MARQUIS

    • Liter: 5.0
    • SubModel: LS
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1980 LINCOLN CONTINENTAL

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1982 FORD MUSTANG

    • Liter: 5.0
    • SubModel: GLX
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1978 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: DIAMOND JUBILEE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1991 MERCURY COLONY PARK

    • EngineType: ALL
    • SubModel: GS

    1974 FORD GRAN TORINO

    • CC: 4949
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1984-1985 LINCOLN MARK VII

    • Liter: 5.0
    • SubModel: BILL BLASS
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983-1988 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: SPORT
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1972 FORD COUNTRY SQUIRE

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1973 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977-1979 MERCURY COUGAR

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1982 MERCURY CAPRI

    • Liter: 5.0
    • SubModel: RS
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977-1979 FORD LTD II

    • Liter: 5.0
    • SubModel: S
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1984-1985 FORD LTD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1970 FORD GALAXIE 500

    • CC: 4949
    • Liter: 5.0
    • SubModel: XL
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1969 MERCURY CYCLONE

    • CC: 4949
    • Liter: 5.0
    • SubModel: CJ
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1977 LINCOLN VERSAILLES

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1984 FORD MUSTANG

    • Liter: 5.0
    • SubModel: L
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1976 MERCURY MONARCH

    • Liter: 5.0
    • SubModel: GRAND GHIA
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1967 MERCURY COUGAR

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1995 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GTS

    1984-1986 FORD THUNDERBIRD

    • Liter: 5.0
    • SubModel: ELAN
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963 FORD GALAXIE 500

    • CC: 4727
    • Liter: 4.7
    • SubModel: VICTORIA
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1970 FORD LTD

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1991 FORD LTD CROWN VICTORIA

    • EngineType: ALL
    • SubModel: LX

    1982-1985 MERCURY GRAND MARQUIS

    • EngineType: ALL
    • SubModel: COLONY PARK

    1978-1979 MERCURY ZEPHYR

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1971 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • SubModel: MACH I
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1966 FORD FAIRLANE

    • Liter: 4.7
    • SubModel: 500
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1963-1964 MERCURY VILLAGER

    • CC: 4261
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1970-1971 FORD TORINO

    • CC: 4949
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1967 FORD COUNTRY SQUIRE

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1965-1967 FORD CUSTOM

    • CC: 4727
    • Liter: 4.7
    • SubModel: BASE
    • CUI: 289
    • EngineType: V8 ( 4.7 L / 289 )

    1994 FORD MUSTANG

    • CC: 4949
    • Liter: 5.0
    • Aspiration: N
    • SubModel: GT
    • Engine Vin: T
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963-1964 FORD SPRINT

    • CC: 4261
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1968-1970 FORD FAIRLANE

    • CC: 4949
    • Liter: 5.0
    • SubModel: 500
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1972 FORD CUSTOM

    • CC: 4949
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1987-1991 MERCURY COLONY PARK

    • EngineType: ALL
    • SubModel: LS

    1984-1985 LINCOLN MARK VII

    • Liter: 5.0
    • SubModel: LSC
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1963 FORD FAIRLANE

    • Liter: 3.6
    • SubModel: 500
    • CUI: 221
    • EngineType: V8 ( 3.6 L / 221 )

    1975-1977 MERCURY COMET

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1983-1988 MERCURY COUGAR

    • Liter: 5.0
    • SubModel: LS
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1964 MERCURY CYCLONE

    • CC: 4261
    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations