COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits

4.38 out of 5 stars 212 Customer Reviews

COMP Cams is bringing the muscle car sound back, and it's nastier than ever! Let's face it--few things serve to grab our attention at a car show or cruise night mor

COMP Cams is bringing the muscle car sound back, and it's nastier than ever! Let's face it--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 you demand, COMP Cams engineering team proudly introduces the Thumpr Series cam and lifter kits. 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 to maximize the rough-idling characteristics of the cams. This gives you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in 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 deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance.

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL12-600-4

COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL12-600-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .479/.465, Chevy, Small Block, Kit

Part Number: CCA-CL12-600-4

4.78 out of 5 stars ( 51 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL11-600-4

Camshaft, Lifters, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .498/.483, Chevy, Big Block

Part Number: CCA-CL11-600-4

4.31 out of 5 stars ( 13 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL12-601-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 287/305, Lift .489/.476, Chevy, Small Block, Kit

Part Number: CCA-CL12-601-4

4.56 out of 5 stars ( 9 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL31-601-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/296, Lift .491/.476, Ford, 221-302, Kit

Part Number: CCA-CL31-601-5

4.33 out of 5 stars ( 9 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL11-602-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 295/312, Lift .522/.507, Chevy, Big Block, Kit

Part Number: CCA-CL11-602-4

4.6 out of 5 stars ( 5 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL33-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .506/.493, Ford, 352-428, Kit

Part Number: CCA-CL33-600-5

2.83 out of 5 stars ( 6 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL35-600-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .490/.475, Ford, 351W, Kit

Part Number: CCA-CL35-600-4

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL11-601-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 287/304, Lift .510/.495, Chevy, Big Block

Part Number: CCA-CL11-601-4

4.75 out of 5 stars ( 4 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL20-602-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 295/312, Lift .507/.494, Mopar, Small Block LA

Part Number: CCA-CL20-602-4

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL51-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .478/.465, Pontiac, V-8, Kit

Part Number: CCA-CL51-600-5

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL20-600-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/296, Lift .486/.473, Mopar, Small Block LA, Kit

Part Number: CCA-CL20-600-4

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL35-601-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 287/304, Lift .501/.486, Ford, 351W, Kit

Part Number: CCA-CL35-601-4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL32-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .506/.493, Ford, 351C, 351M, 400, Kit

Part Number: CCA-CL32-600-5

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL35-602-4

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 295/313, Lift .512/.489, Ford, 351W, Kit

Part Number: CCA-CL35-602-4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL10-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/296, Lift .491/.476, AMC V8, Kit

Part Number: CCA-CL10-600-5

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits K10-600-5

3 out of 5 stars ( 2 )

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL21-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 279/296, Lift .486/.473, Mopar, Big Block, Kit

Part Number: CCA-CL21-600-5

Not Yet Reviewed

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL34-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .506/.493, Ford, 429, 460, Kit

Part Number: CCA-CL34-600-5

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL21-602-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 295/312, Lift .507/.494, Chrysler, Big Block, Kit

Part Number: CCA-CL21-602-5

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Cam and Lifter Kits CL42-600-5

Cam and Lifters, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .491/.476, Oldsmobile V8, Kit

Part Number: CCA-CL42-600-5

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

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