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COMP Cams

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits

4.29 out of 5 stars 17 Customer Reviews

COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things serve to grab our attention at a car show or cruise night more than a car wit
COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things serve to grab our attention at a car show or cruise night more than a car with a thumping, high performance idle. In an ongoing quest to provide you with the performance and sound that you demand, COMP Cams' engineering team proudly introduces the Thumpr Series hydraulic roller cam and lifter kits. They are designed for use in engines that were originally equipped with flat tappet camshafts. The lobe profile and grind characteristics of these Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust durat
COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things serve to grab our attention at a car show or cruise night more than a car with a thumping, high performance idle. In an ongoing quest to provide you with the performance and sound that you demand, COMP Cams' engineering team proudly introduces the Thumpr Series hydraulic roller cam and lifter kits. They are designed for use in engines that were originally equipped with flat tappet camshafts. The lobe profile and grind characteristics of these Thumpr camshafts use a combination of an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. They're designed to maximize the rough-idling characteristics of the cams, giving you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. They are available in three different grind profiles. Each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range. Thumpr Series cam and lifter kits feature a cutting-edge hydraulic roller design that delivers a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance.

Results 1 - 25 of 33

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL12-602-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL12-602-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL12-602-8

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 299/319, Lift .531/.517, Chevy, Small Block, Kit

Part Number: CCA-CL12-602-8

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL12-601-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL12-601-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL12-601-8

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .521/.507, Chevy, Small Block, Kit

Part Number: CCA-CL12-601-8

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K34-600-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K34-600-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K34-600-9

Camshaft Kits, Thumpr Hydraulic Roller Cam/Lifter Kits, Retro-fit, Advertised Duration 283/303, Lift .557/.539, Ford, 429/460 Big Block 385 Series,Kit

Part Number: CCA-K34-600-9

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-600-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-600-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-600-8

Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift .513/.498, Chevy, 5.0, 5.7L

Part Number: CCA-K08-600-8

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL34-601-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL34-601-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL34-601-9

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .567/.551, Ford, 429, 460, Kit

Part Number: CCA-CL34-601-9

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits for 1971 RM300, 1971-1974 RM350 - CL20-601-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits for 1971 RM300, 1971-1974 RM350 - CL20-601-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits for 1971 RM300, 1971-1974 RM350 - CL20-601-9

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .522/.509, Mopar, Small Block LA

Part Number: CCA-CL20-601-9

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL20-600-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL20-600-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL20-600-9

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift .513/.498, Mopar, Small Block LA

Part Number: CCA-CL20-600-9

Not Yet Reviewed

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COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K33-600-11

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K33-600-11

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K33-600-11

Camshaft Kits, Thumpr Hydraulic Roller Cam and Lifter Kits, Retro-fit, Advertised Duration 283/303, Lift 0.557/0.539, Ford, Big Block FE, Kit

Part Number: CCA-K33-600-11

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K20-603-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K20-603-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K20-603-9

Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Adv. Duration 299/319, Lift .533/.519, Mopar, 273-360, Kit

Part Number: CCA-K20-603-9

Not Yet Reviewed

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COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K20-600-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K20-600-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K20-600-9

Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Adv. Duration 283/303, Lift .513/.498, Mopar, 273-360, Kit

Part Number: CCA-K20-600-9

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK35-602-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK35-602-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK35-602-8

Cam/Lifters/Gear, Hydraulic Roller Tappet, Advertised Duration 299/319, Lift .552/.538, Ford, 351W

Part Number: CCA-GK35-602-8

Not Yet Reviewed

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K01-600-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K01-600-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K01-600-8

Cam, Lifters, Valvetrain, Hydraulic Roller Tappet, Duration 283/303, Lift .547/.530, Chevy, 7.4L, Kit

Part Number: CCA-K01-600-8

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK12-601-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK12-601-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK12-601-8

Cam/Lifters/Gear, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .521/.507, Chevy, Small Block

Part Number: CCA-GK12-601-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-602-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-602-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-602-8

Cam, Lifters, Valvetrain, Hydraulic Roller Tappet, Duration 299/319, Lift .533/.519, Chevy, 5.0, 5.7L, Kit

Part Number: CCA-K08-602-8

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL42-600-11

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL42-600-11

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL42-600-11

Camshaft Kits, Thumpr Hydraulic Roller Cam and Lifter Kits, Retro-fit, Advertised Duration 283/303, Lift 0.531/0.515, Olds, Oldsmobile V8, Kit

Part Number: CCA-CL42-600-11

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2025 if ordered today

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Estimated Ship Date: Dec 31, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL20-603-9

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL20-603-9

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL20-603-9

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 299/319, Lift .533/.519, Mopar, Small Block LA

Part Number: CCA-CL20-603-9

Not Yet Reviewed

Estimated Ship Date: Dec 1, 2025 if ordered today

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Estimated Ship Date: Dec 1, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-601-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-601-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-601-8

Cam/Lifters/Timing Kit, Hydraulic Roller, Advertised Duration 291/311, Lift .522/.509, Chevy, 5.0, 5.7L, Kit

Part Number: CCA-GK08-601-8

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK12-602-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK12-602-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK12-602-8

Cam/Lifters/Timing Kit, Hydraulic Roller, Advertised Duration 299/319, Lift .531/.517, Chevy, Small Block, Kit

Part Number: CCA-GK12-602-8

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK35-600-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK35-600-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK35-600-8

Cam/Lifters/Gear, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift .531/.515, Ford, 351W, Kit

Part Number: CCA-GK35-600-8

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL35-601-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL35-601-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL35-601-8

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .541/.526, Ford, 351W, Kit

Part Number: CCA-CL35-601-8

Not Yet Reviewed

Estimated Ship Date: Dec 9, 2025 if ordered today

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Estimated Ship Date: Dec 9, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-601-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-601-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits K08-601-8

Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 291/311, Lift .522/.509, Chevy 5.0, 5.7L

Part Number: CCA-K08-601-8

Not Yet Reviewed

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COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL35-602-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL35-602-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits CL35-602-8

Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 299/319, Lift .552/.538, Ford, 351W, Kit

Part Number: CCA-CL35-602-8

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-600-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-600-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-600-8

Cam/Lifters/Timing Kit, Hydraulic Roller, Advertised Duration 283/303, Lift .513/.498, Chevy, 5.0, 5.7L, Kit

Part Number: CCA-GK08-600-8

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-602-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-602-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK08-602-8

Cam/Lifters/Timing Kit, Hydraulic Roller, Advertised Duration 299/319, Lift .533/.519, Chevy, 5.0, 5.7L, Kit

Part Number: CCA-GK08-602-8

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK11-600-8

Made in the USA COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK11-600-8

COMP Cams Thumpr Hydraulic Roller Cam and Lifter Kits GK11-600-8

Cam, Lifters, Timing Kit, Hydraulic Roller, Advertised Duration 283/303, Lift .547/.530, Chevy, Big Block, Kit

Part Number: CCA-GK11-600-8

Not Yet Reviewed

Estimated Ship Date: Jan 2, 2026 if ordered today

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Estimated Ship Date: Jan 2, 2026 if ordered today

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