COMP Cams Thumpr Hydraulic Flat Tappet Camshafts

4.58 out of 5 stars 57 Customer Reviews

COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things grab our attention at a car show or cruise-in like a thumping, high performan

COMP Cams is bringing the musclecar sound back, and it's nastier than ever! Few things grab our attention at a car show or cruise-in like a thumping, high performance idle. In fact, one of the most frequent questions from customers is, "What camshaft will give my car that mean-sounding idle?" For the performance and sound you demand, COMP Cams engineers introduce the Thumpr camshafts—a new series of hydraulic flat tappet cams. The lobe profile and grind characteristics of Thumprs use a combination of early exhaust valve opening, long exhaust duration, and a generous amount of intake and exhaust overlap—to maximize the rough-idling characteristics of the cams. They give you a seriously aggressive exhaust note without negatively impacting the power output or streetability of the engine. Thumpr camshafts are available in several grind profiles; each one will produce a rough, racy exhaust note and impressive amounts of horsepower and torque within a different rpm range.

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 12-600-4

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 12-600-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .479/.465, Chevy, Small Block, Each

Part Number: CCA-12-600-4

4.5 out of 5 stars ( 16 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 11-600-4

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

Part Number: CCA-11-600-4

5.0 out of 5 stars ( 6 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 33-600-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .506/.493, Ford, Big Block FE, Each

Part Number: CCA-33-600-5

5.0 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 12-601-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 287/305, Lift .489/.476, Chevy, Small Block, Each

Part Number: CCA-12-601-4

4.2 out of 5 stars ( 10 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 91-600-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .478/.465, Buick, 364, 401, 425, Each

Part Number: CCA-91-600-5

5.0 out of 5 stars ( 2 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 12-602-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 295/313, Lift .500/.486, Chevy, Small Block, Each

Part Number: CCA-12-602-4

5.0 out of 5 stars ( 3 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 34-600-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .506/.493, Ford, Big Block 385, Each

Part Number: CCA-34-600-5

4.0 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 20-601-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 287/304, Lift .497/.483, Chrysler, Small Block, Each

Part Number: CCA-20-601-4

Not Yet Reviewed

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 31-601-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/296, Lift .491/.476, Ford,. Small Block, Kit

Part Number: CCA-31-601-5

3.0 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 35-600-4

Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .490/.475, Ford, 351W, Each

Part Number: CCA-35-600-4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 35-601-4

Camshaft; Mutha Thumpr; Camshaft; Hydraulic Flat Tappet; 2200-6100rpm; Adver. Dur. 287 Int./305 Exh.; Val

Part Number: CCA-35-601-4

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 20-600-4

Camshaft; Thumpr; Camshaft; Hydraulic Flat Tappet; 2000-5800rpm; Adver. Dur. 279 Int./297 Exh.; Valve Lif

Part Number: CCA-20-600-4

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 11-602-4

Camshaft; Big Mutha Thumpr; Camshaft; Hydraulic Flat Tappet; 2300-6200rpm; Adver. Dur. 295 Int./313 Exh.;

Part Number: CCA-11-602-4

5.0 out of 5 stars ( 2 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 11-601-4

Camshaft; Mutha Thumpr; Camshaft; Hydraulic Flat Tappet; 2000-5900rpm; Adver. Dur. 287 Int./305 Exh.; Val

Part Number: CCA-11-601-4

5.0 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 32-601-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 286/304, Lift .519/.503, Ford, 351C, 351M, 400, Each

Part Number: CCA-32-601-5

5.0 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 96-600-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/297, Lift .494/.480, Buick, 400, 430, 455, Each

Part Number: CCA-96-600-5

5.0 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 23-600-5

Camshafts, Thumpr Hydraulic Flat Tappet, Advertised Duration 279/296, Lift 0.486/0.473, Chrysler, Dodge, Plymouth, Big Block, Each

Part Number: CCA-23-600-5

Not Yet Reviewed

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 21-601-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 287/304, Lift .497/.483, Chrysler, Big Block, Each

Part Number: CCA-21-601-5

Not Yet Reviewed

Estimated Ship Date: Nov 11, 2025 if ordered today

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Estimated Ship Date: Nov 11, 2025 if ordered today

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Howards Cams Rattler Camshafts 728041-09

5 out of 5 stars ( 1 )

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 96-601-5

Camshaft, Hydraulic Flat Tappet, Duration 279 Int./297 Exh., Lift 0.494 Int./0.480 Exh., Lobe Separation 107, Buick, 400, 430, 455, Each

Part Number: CCA-96-601-5

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 92-600-5

Camshaft, Hydraulic Flat Tappet, Duration 279 Int./297 Exh., Lift 0.494 Int./0.480 Exh., Lobe Separation 107, Buick, 350, Each

Part Number: CCA-92-600-5

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 32-600-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 278/296, Lift .506/.493, Ford, Cleveland, Modified, Each

Part Number: CCA-32-600-5

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 21-600-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 279/296, Lift .486/.473, Mopar, Big Block, Each

Part Number: CCA-21-600-5

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 10-604-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 295/312, Lift .512/.497, AMC V8, Each

Part Number: CCA-10-604-5

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 94-601-5

Camshaft, Hydraulic Flat Tappet, Duration 286 Int./304 Exh., Lift 0.516 Int./0.500 Exh., Lobe Separation 107, Cadillac, 425, 472, 500, Each

Part Number: CCA-94-601-5

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 92-602-5

Camshaft, Hydraulic Flat Tappet, Advertised Duration 295/313, Lift .517/.502, Buick, 350, Each

Part Number: CCA-92-602-5

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2025 if ordered today

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Estimated Ship Date: Nov 10, 2025 if ordered today

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