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COMP Cams Big Mutha Thumpr Hydraulic Roller Cam and Lifter Kits CL42-602-11 Camshaft Kits, Kits, Retro-fit, Advertised Duration 299/319, Lift .552/.537, Olds, Oldsmobile V8, Kit

SKU: CCACL42-602-11

Camshaft Kits

COMP Cams Big Mutha Thumpr Hydraulic Roller Cam and Lifter Kits CL42-602-11 Camshaft Kits, Kits, Retro-fit, Advertised Duration 299/319, Lift .552/.537, Olds, Oldsmobile V8, Kit

SKU: CCACL42-602-11

Camshaft Kits
A$2,704.04
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Comp Cams Camshaft Kit, Ol 299Th R7 Thum Pr

CL-KIT - Cam and Lifter Kit Includes: Camshaft, Lifters, Assembly Lube, Decals and Instructions.

Additional Information

Street/strip, needs 9.5:1 compression, 2,800+ stall, intake, gears and headers, very rough idle.

Application Summary

Fits 1967+ Oldsmobile 260, 307, 350, 403, 400, 425 and 455 V8

Part Type

Engine Camshaft and Lifter Kit


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 21:16:07

Data: v4.2 - Upd: 2026-11-09 07:44:12

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU ccaCL42-602-11
SFX Item ID 4776701
Accounting SKU cca-CL42-602-11
Manufacturer SKU CL42-602-11
Manufacturer UPC 036584381877
Alternative References CCA-CL42-602-11, CL42-602-11

Camshaft Kits, Big Mutha Thumpr Hydraulic Roller Cam and Lifter Kits, Retro-fit, Advertised Duration 299/319, Lift .552/.537, Olds, Oldsmobile V8, Kit

COMP Cams is bringing the muscle car sound back, and it's nastier than ever--Big Mutha' Thumpr hydraulic roller cam and lifter kits. These camshafts are for use in engines that were originally equipped with flat tappet camshafts and are designed to maximize the rough-idling characteristics of the cams, giving you a seriously aggressive exhaust note without negatively impacting the power output or street ability of the engine. COMP Cams Big Mutha' Thumpr cam and lifter kits deliver a cutting-edge hydraulic roller cam offering a substantial power increase, reliability, and ease of maintenance, along with a set of matched lifters.

Product Attributes
BrandCOMP Cams
Manufacturer's Part NumberCL42-602-11
Part TypeCamshaft Kits
Product LineCOMP Cams Big Mutha Thumpr Hydraulic Roller Cam and Lifter Kits
UPC00036584381877
Cam StyleHydraulic roller, Retro-fit
Basic Operating RPM Range2,300-6,100
Camshaft UseStreet/Strip
Camshaft Manufacturers DescriptionStreet/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Intake Duration at 050 inch Lift243
Exhaust Duration at 050 inch Lift257
Duration at 050 inch Lift243 int./257 exh.
Advertised Intake Duration299
Advertised Exhaust Duration319
Advertised Duration299 int./319 exh.
Intake Valve Lift with Factory Rocker Arm Ratio0.552 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio0.537 in.
Valve Lift with Factory Rocker Arm Ratio0.552 int./0.537 exh.
Camshaft Gear Attachment1-bolt
Grind Number299THR7
Computer-Controlled CompatibleNo
Lifters IncludedYes
Lifter StyleHydraulic roller
Valve Springs IncludedNo
Retainers IncludedNo
Locks IncludedNo
Valve Stem Seals IncludedNo
Timing Chain and Gears IncludedNo
Assembly Lubricant IncludedYes
Pushrods IncludedNo
Rocker Arms IncludedNo
Gaskets IncludedNo
Valve Springs RequiredYes
QuantitySold as a kit.

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