Big Mutha" Thumpr Hydraulic Flat Camshaft Single-Bolt Lift .507"/.494" Duration 295/312 RPM Range 2500-6400

Vehicle Info Needed

COMP CAMSPART NUMBER: 249-21-602-5

Big Mutha" Thumpr Hydraulic Flat Camshaft Single-Bolt Lift .507"/.494" Duration 295/312 RPM Range 2500-6400

Name: Big Mutha" Thumpr Hydraulic Flat Camshaft Single-Bolt Lift .507"/.494" Duration 295/312 RPM Range 2500-6400
Brand: COMP CAMS
SKU: 249-21-602-5
Price: 325.95 USD
Availability: InStock

^$325⁹⁵

Ships on 09/15/2026

Lowest Price Guarantee

Chrysler 383-440 C.I. 8 CYL. 1959-1980

Lift

Duration

RPM Range

273, 360, 318, AMC, Dodge, Mopar, Plymouth, Dart, Road Runner, Charger, Challenger, 383, 400, 440, 426, HEMI, 426 Wedge, 426 HEMI, RB, B, HEMI, 392, Chrysler, LA

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Part TypeCamshaft

BrandCOMP CAMS

Package Height2.8

Package Width3.0

Package Length24.3

Weight9.77 PG

Part CategoryPerformance Parts

Exh. Duration @ .050 In. (Deg)257

Cam StyleHydraulic flat tappet

Grind Number295TH7

Exh. Duration Advertised (Deg)312

Engine Make/SizeMopar 383-440

Intake Valve Lift With Factory Rocker Arm Ratio (I0.507

Int. Duration @ .050 In. (Deg)243

Basic Operating Rpm Range2,500-6,400

Intake Valve Lift0.507 in (12.878 mm)

Computer-Controlled CompatibleNo

Int. Duration Advertised (Deg)295

Lobe Separation (Deg)107

Rpm Range2500-6400

Advertised Duration295 int./312 exh.

Exhaust Valve Lift With Factory Rocker Arm Ratio (0.494

UsageStreet/Strip

Valve Lift With Factory Rocker Arm Ratio0.507 int./0.494 exh.

Camshaft Gear Attachment1-bolt

QuantitySold individually

Exhaust Valve Lift0.494 in (12.548 mm)

Advertised Intake Duration295

Intake Duration At 050 Inch Lift243

Exhaust Duration At 050 Inch Lift257

Advertised Exhaust Duration312

Lifter TypeHydraulic Flat Tappet

Part FitmentSemi Universal

Duration At 050 Inch Lift243 int./257 exh.

Valve Springs RequiredYes

Vendor Part Number21-602-5

Package Qty1

Package TypeEA

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