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COMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits K42-602-9

COMP Cams K42-602-9 - COMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits

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Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Adv. Duration 299/319, Lift .552/.537, Oldsmobile V8, Kit

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Brand: COMP Cams
Manufacturer's Part Number: K42-602-9
Part Type: Camshaft Kits
Summit Racing Part Number: CCA-K42-602-9

UPC: 036584215318
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,300-6,100
Intake Duration at 050 inch Lift: 243
Exhaust Duration at 050 inch Lift: 257
Duration at 050 inch Lift: 243 int./257 exh.
Advertised Intake Duration: 299
Advertised Exhaust Duration: 319
Advertised Duration: 299 int./319 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.552 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.537 in.
Valve Lift with Factory Rocker Arm Ratio: 0.552 int./0.537 exh.
Lobe Separation (degrees): 107
Grind Number: 299THR7
Computer-Controlled Compatible: No
Lifters Included: Yes
Lifter Style: Hydraulic roller
Valve Springs Included: Yes
Outside Diameter of Outer Spring (in): 1.437 in.
Retainers Included: Yes
Locks Included: Yes
Valve Stem Seals Included: Yes
Timing Chain and Gears Included: Yes
Timing Chain Style: Double roller
Assembly Lubricant Included: No
Pushrods Included: No
Rocker Arms Included: No
Gaskets Included: No
Valve Springs Required: No
Quantity: Sold as a kit.
Footnotes: 5 - Requires distributor gear upgrade.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Musclecar sound is back and nastier than ever with these Thumpr retrofit hydraulic roller cam and lifter kits from COMP Cams! These cams feature a thumping high performance idle and provide significant horsepower and torque increases. Specially engineered profiles are offered for each unique engine, providing the perfect combination of an early intake valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize your engine's nasty-idling characteristics without negatively impacting streetability. These kits include high-quality matched lifters for unbeatable performance, durability, and ease of installation.


Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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