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COMP Cams

COMP Cams CO12-600-4 Thumpr Hyd Camshaft 227/241@ .050 279TH7 Suit Chev SB 55-98

COMP Cams CO12-600-4 Thumpr Hyd Camshaft 227/241@ .050 279TH7 Suit Chev SB 55-98

CO12-600-4
$563.15 AUD
$563.15 AUD
Sale Sold out
Tax included. Shipping calculated at checkout.
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.

Application: Chevy small block Gen I 262-400ci V8.

Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-5,800
Intake Duration at 050 inch Lift: 227
Exhaust Duration at 050 inch Lift: 241
Duration at 050 inch Lift: 227 int./241 exh.
Advertised Intake Duration: 279
Advertised Exhaust Duration: 297
Advertised Duration: 279 int./297 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.479 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.465 in.
Valve Lift with Factory Rocker Arm Ratio: 0.479 int./0.465 exh.
Lobe Separation (degrees): 107
Camshaft Gear Attachment: 3-bolt
Computer-Controlled Compatible: No
Grind Number: 279TH7
Valve Springs Required: Yes
Quantity: Sold individually.

Manufacturer Part Number:

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