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COMP Cams Big Mutha' Thumpr Hydraulic Roller Camshaft Ford

(Jeep Grand Cherokee 1993-98, Grand Wagoneer 1993; Ford F-150 1977-95, Mustang 1969-95, F-250 1977-95, Bronco 1978-95, Thunderbird 1968-79 + 198 more models)

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5 part numbers · from $529.62
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from $529.62

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Big Mutha' Thumpr Hydraulic Roller Camshaft line is built for builders who want a hard-hitting, aggressive idle and strong street/strip performance from a retro-fit hydraulic roller cam. Part of the COMP Cams Thumpr series, these hydraulic roller cams (also called hydraulic roller cams or retro-fit roller cams) give an unmistakable rough idle and a powerful exhaust note.

Key Features:

  • Thumpr series grind: Long exhaust duration produces the aggressive, choppy exhaust note the series is known for.
  • Hydraulic roller design: Roller lifters reduce friction and give a broad torque curve. Hydraulic operation means no solid-lifter lash adjustments.
  • Street/strip performance: Designed to deliver noticeable horsepower and torque gains across a wide operating range of roughly 2,500 to 6,200 RPM.
  • Quality construction: Made by COMP Cams, a leading name in performance camshafts and valvetrain components.
  • Flexible packages: Available in several configurations, including camshaft-only and upgraded kits that add lifters, gear drives or a complete valvetrain package. Each part number is listed separately.

Setup Notes: These are aggressive cams with a very rough idle. They work best in a built combination with higher compression, a high-stall torque converter, a matching intake, gears and headers. Matching valve springs and other valvetrain components are required, and professional installation and tuning are recommended.

For a distinctive Thumpr sound and strong performance, the Big Mutha' Thumpr line is a proven choice for retro-fit hydraulic roller builds.

Products specifications

Fits

Jeep Grand Cherokee 1993-98, Grand Wagoneer 1993; Ford F-150 1977-95, Mustang 1969-95, F-250 1977-95, Bronco 1978-95, Thunderbird 1968-79, F-350 1977-95, Galaxie 500 1969-74, F-100 1977-79, 1981, F-250 Pickup 1981-95 + 194 more models

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5 items

Description
Specifications
AMAZON ASINB0014EXK5S
Assembly Lubricant IncludedNo
C.A.R.B. E.O. NumberN/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption ReasonN/A
California Proposition 65WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam and Lifter Kit UpgradeCL35-602-8
Cam, Lifter and Gear Drive UpgradeGK35-602-8
Camshaft Gear Attachment1-Bolt
Camshaft MaterialAustempered Ductile Iron
Camshaft SeriesThumpr
Engine FamilyFord 351W 8 Cylinder (1969-1996)
Grind Number299THR7
K-Kit UpgradeK35-602-8
Lifters IncludedNo
LOBE SEPARATION107
UsageStreet/Performance
Valve Springs RequiredYes
$577.95
PART NUMBER: 35-602-8
In Stock (10+)
Usually delivered within 2 days
Description
Specifications
Advertised Exhaust Duration319
Advertised Intake Duration299
AMAZON ASINB0046ZJCQI
Assembly Lubricant IncludedNo
Basic Operating RPM Range2,500-6,200
C.A.R.B. E.O. NumberN/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption ReasonN/A
California Proposition 65WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam and Lifter Kit UpgradeCL34-602-9
Cam TypeHydraulic Roller
Camshaft Gear Attachment1-Bolt
Camshaft MaterialBillet Steel
Camshaft SeriesThumpr
Engine FamilyFord 429, 460 c.i. 8 Cylinder (1968-1995)
Exhaust Duration at .050 inch Lift257
Exhaust Valve Lift0.563
Grind Number299THR7
Intake Duration at .050 Inch Lift243
Intake Valve Lift0.579
K-Kit UpgradeK34-602-9
Lifter TypeHydraulic Roller
Lifters IncludedNo
LOBE SEPARATION107
UsageStreet/Strip
Valve Springs RequiredYes
$558.95
PART NUMBER: 34-602-9
In Stock (5)
Usually delivered within 2 days
Description
Specifications
Advertised Exhaust Duration319
Advertised Intake Duration299
AMAZON ASINB001GBMGNQ
Assembly Lubricant IncludedNo
Basic Operating RPM Range2,500-6,200
C.A.R.B. E.O. NumberN/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption ReasonN/A
California Proposition 65WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam and Lifter Kit UpgradeCL20-603-9
Cam TypeHydraulic Roller
Camshaft Gear Attachment1-Bolt
Camshaft MaterialBillet Steel
Camshaft SeriesThumpr
Engine FamilyChrysler 273-360 c.i. 8 Cylinder (1964-2002)
Exhaust Duration at .050 inch Lift257
Exhaust Valve Lift0.519
Grind Number299THR7
Intake Duration at .050 Inch Lift243
Intake Valve Lift0.533
K-Kit UpgradeK20-603-9
Lifter TypeHydraulic Roller
Lifters IncludedNo
LOBE SEPARATION107
UsageStreet/Strip
Valve Springs RequiredYes
$558.95
PART NUMBER: 20-603-9
2 left at this price
Usually delivered within 2 days
Description
Specifications
Advertised Exhaust Duration319
Advertised Intake Duration299
AMAZON ASINB005H89TN4
Assembly Lubricant IncludedNo
Basic Operating RPM Range2,500-6,200
C.A.R.B. E.O. NumberN/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption ReasonN/A
California Proposition 65WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam TypeHydraulic Roller
Camshaft Gear Attachment3-Bolt
Camshaft MaterialBillet Steel
Camshaft SeriesThumpr
Engine FamilyChrysler 383-440 c.i. 8 Cylinder (1959-1980)
Exhaust Duration at .050 inch Lift257
Exhaust Valve Lift0.519
Grind Number299THR7
Intake Duration at .050 Inch Lift243
Intake Valve Lift0.532
Lifter TypeHydraulic Roller
Lifters IncludedNo
LOBE SEPARATION107
UsageStreet/Strip
Valve Springs RequiredYes
$622.95
PART NUMBER: 23-602-9
1 left at this price
Usually delivered within 2 days
Description
Specifications
Advertised Exhaust Duration319
Advertised Intake Duration299
AMAZON ASINB0046ZJA7Y
Assembly Lubricant IncludedNo
Basic Operating RPM Range2,500-6,200
C.A.R.B. E.O. NumberN/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption ReasonN/A
California Proposition 65WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Cam and Lifter Kit UpgradeCL32-602-8
Cam TypeHydraulic Roller
Camshaft Gear Attachment1-Bolt
Camshaft MaterialAustempered Ductile Iron
Camshaft SeriesThumpr
Engine FamilyFord 351C, 351M-400M 8 Cylinder (1970-1983)
Exhaust Duration at .050 inch Lift257
Exhaust Valve Lift0.563
Grind Number299THR7
Intake Duration at .050 Inch Lift243
Intake Valve Lift0.579
K-Kit UpgradeK32-602-8
Lifter TypeHydraulic Roller
Lifters IncludedNo
LOBE SEPARATION107
UsageStreet/Strip
Valve Springs RequiredYes
$529.62
PART NUMBER: 32-602-8
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