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COMP Cams Camshaft Kit 299TH R7 Thum

SKU: CCAK42-602-11

Camshaft Kits

CCA Camshaft Kits...

COMP Cams Camshaft Kit 299TH R7 Thum

SKU: CCAK42-602-11

Camshaft Kits

CCA Camshaft Kits...

A$3,288.12
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 299TH R7 Thum

K-KIT - Complete Kit Includes: Camshaft, Lifters, Valve Springs, Retainers, Valve Locks, Valve Stem Seals, Timing Chain Set, Assembly Lube (in flat tappet applications), Decals and Instructions.

Additional Information

Street/strip, needs 9.5:1 compression, 2800+ 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 Kit


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:12:37

Data: v4.2 - Upd: 2026-11-07 21:15:00

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

Product Details

Description:Big Mutha' Thumpr 243/257 Hydraulic Roller K-Kit for Oldsmobile 260-455
Part Number:ccaK42-602-11

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Comp Cams, Comp Cams (edelbrock)
StreetFX SKU ccaK42-602-11
SFX Item ID 4124879
Accounting SKU cca-K42-602-11
Manufacturer SKU K42-602-11
Manufacturer UPC 036584381884
Alternative References CCA-K42-602-11, K42-602-11

Camshaft Kits, Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits, Advertised Duration 299/319, Lift 0.552/0.537, Olds, Oldsmobile V8, Kit

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.

Product Attributes
BrandCOMP Cams
Manufacturer's Part NumberK42-602-11
Part TypeCamshaft Kits
Product LineCOMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits
UPC00036584381884
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 IncludedYes
Valve Spring StyleStandard
Outside Diameter of Outer Spring (in.)1.437 in.
Retainers IncludedYes
Locks IncludedYes
Valve Stem Seals IncludedYes
Timing Chain and Gears IncludedYes
Timing Chain StyleDouble roller
Assembly Lubricant IncludedYes
Pushrods IncludedNo
Rocker Arms IncludedNo
Gaskets IncludedNo
Valve Springs RequiredNo
QuantitySold as a kit.

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