Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft & Lifter Kit Lift: .522"/.508"

Product Discontinued

COMP CAMSPART NUMBER: 249-CL51-601-9

Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft & Lifter Kit Lift: .522"/.508"

Name: Mutha Thumpr Retro-Fit Hydraulic Roller Camshaft & Lifter Kit Lift: .522"/.508"
Brand: COMP CAMS
SKU: 249-CL51-601-9
Price: 854.99 USD
Availability: OutOfStock

Currently Unavailable

This product is no longer available. Please call customer service for assistance at 1-800-345-4545.

Pontiac 265-455ci 1955-1981 Non-Factory Roller Block

Mutha Thumpr

Lift: .522"/.508"
Duration: 291°/311°
Lobe Separation Angle: 107°
RPM Range: 2000-5800
Camshaft And Lifter Kit
3 Grinds To Fit All Of Your Performance Needs
Long Exhaust Duration
Produces A Powerful Hard-Hitting Exhaust Note
Excellent Horsepower Gains And Broad Torque Curve
Delivers Real Seat Of The Pants Performance
Designed For Use w/Latest In ValveTrain Components
1 Year Limited Warranty

Part TypeCamshaft Kit

BrandCOMP CAMS

Package Height3.0

Package Width5.5

Package Length26.0

Weight16.0 PG

Part CategoryPerformance Parts

Exh. Duration @ .050 In. (Deg)249

Cam StyleHydraulic roller tappet

Grind Number291THR7

Exh. Duration Advertised (Deg)311

Locks IncludedNo

Engine Make/SizePontiac 265-455

Retainers IncludedNo

Intake Valve Lift With Factory Rocker Arm Ratio (I0.522

Int. Duration @ .050 In. (Deg)235

Assembly Lubricant IncludedNo

Basic Operating Rpm Range2,000-5,800

Pushrods IncludedNo

Gaskets IncludedNo

Rocker Arms IncludedNo

Intake Valve Lift0.522 in (13.259 mm)

Computer-Controlled CompatibleNo

Int. Duration Advertised (Deg)291

Lobe Separation (Deg)107

Rpm Range2000-5800

Lifter StyleHydraulic roller

Advertised Duration291 int./311 exh.

Exhaust Valve Lift With Factory Rocker Arm Ratio (0.508

Valve Springs IncludedNo

UsageStreet/Strip

Valve Lift With Factory Rocker Arm Ratio0.522 int./0.508 exh.

QuantitySold as a kit

Valve Stem Seals IncludedNo

Exhaust Valve Lift0.508 in (12.903 mm)

Advertised Intake Duration291

Intake Duration At 050 Inch Lift235

Exhaust Duration At 050 Inch Lift249

Timing Chain And Gears IncludedNo

Advertised Exhaust Duration311

Lifter TypeHydraulic Roller Retrofit

Duration At 050 Inch Lift235 int./249 exh.

Valve Springs RequiredYes

Lifters IncludedYes

Vendor Part NumberCL51-601-9

Package Qty1

Package TypeEA

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