Description
Brand: COMP Cams
Manufacturer’s Part Number: 54-602-11
Part Type: Camshafts
Product Line: COMP Cams Thumpr Hydraulic Roller Camshafts
Automotive Fittings Part Number: CCA-54-602-11
UPC: 036584195184
Cam Style: Hydraulic roller, OE roller
Camshaft Use: Street/Strip
Basic Operating RPM Range: 2,600-6,800
Intake Duration at 050 inch Lift: 235
Exhaust Duration at 050 inch Lift: 249
Duration at 050 inch Lift: 235 int./249 exh.
Advertised Intake Duration: 291
Advertised Exhaust Duration: 311
Advertised Duration: 291 int./311 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.573 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.558 in.
Valve Lift with Factory Rocker Arm Ratio: 0.573 int./0.558 exh.
Lobe Separation (degrees): 109
Camshaft Gear Attachment: 3-bolt
Remanufactured: No
Computer-Controlled Compatible: Yes
Grind Number: 291THR9
Valve Springs Required: Yes
Quantity: Sold individually.
Notes: Cannot use stock springs. Stall converter 2800 and up, 9.5:1 compression, gears and headers are recommended. Custom computer tuning required.
Description:
COMP Cams has awakened the muscle car sound–and it is nastier than ever! Thumpr Series camshafts is a line of cutting-edge hydraulic roller camshafts for engines originally equipped with flat tappet cams. With them, you can expect a substantial power increase without sacrificing reliability or ease of maintenance! The lobe profile and grind characteristics of Thumpr cams include blending an early exhaust valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap. This maximizes rough-idling tendencies, delivering a seriously aggressive exhaust note without affecting engine power output. Thumpr camshafts are available in a variety of grind profiles, each producing impressive horsepower and torque performance within a different rpm range.
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