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COMP Cams 54-702-11 Stage 2 Thumpr Camshaft LS Truck 4.8L 5.3L 6.0L Gen III

(Chevrolet Silverado 1500 1999-2013, Silverado 1500 HD 2001-03, 2005-06, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13 + 63 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

54-702-11
9 reviews
Sale Price

$404.95

Estimated ship date Friday, November 20

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Live-in-stock inventory

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Product Details

The COMP Cams Stage 2 Thumpr camshaft is specifically engineered for GM Gen III LS truck engines, including 4.8L, 5.3L, and 6.0L applications. This performance camshaft delivers an aggressive idle sound and strong mid-range power gains that truck enthusiasts demand.

Key Features:

  • Stage 2 Thumpr profile designed for LS truck applications
  • Compatible with Gen III LS 4.8L, 5.3L, and 6.0L engines
  • Aggressive lope idle with improved throttle response
  • Enhanced mid-range torque for towing and performance
  • Works with stock valve springs and components in most applications
  • Precision-manufactured from high-quality billet steel

The Thumpr series is COMP Cams' most popular line of camshafts, known for producing a distinctive choppy idle reminiscent of classic muscle cars while maintaining excellent street manners and drivability. The Stage 2 profile offers more aggressive performance characteristics than Stage 1, making it ideal for trucks used in performance applications while still being suitable for daily driving. This camshaft is designed to work with factory fuel injection and computer systems, though tuning is recommended for optimal performance.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2013, Silverado 1500 HD 2001-03, 2005-06, Suburban 1500 2000-14, Camaro 2010-16, Corvette 2005-13, Silverado 2500 HD 2001-08, 2010-19, Tahoe 2000-14, Impala 2006-09, Colorado 2009-12, Trailblazer 2006-08 + 58 more models

Basic Operating RPM Range

1,800-6,600

Engine Family

GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)

Exhaust Valve Lift

0.638

Intake Valve Lift

0.663

Recommended Upgraded Stock Rocker Arms

1477-16

Recommended Max-Lift BSR Shaft Rocker System

1981-16

Grind Number

280LTH13

Recommended Cam Install Kit

5621

AMAZON ASIN

B07MDDHVBN

CK-Kit Upgrade

CK54-702-11

MK-Kit Upgrade

MK54-702-11

Assembly Lubricant Included

No

Lifters Included

No

Prop 65

WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov

C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for On-Road Vehicles?

No

C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?

Yes, but must be a race/competition only vehicle.

C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?

Yes, but must meet tailpipe emission standards for year of vehicle.

C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?

Yes, but must meet tailpipe emission standards for year of vehicle.

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

113

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

237

Cam Type

Hydraulic Roller

Stage

2

Usage

Street / Performance

Camshaft Material

Billet Steel

Advertised Exhaust Duration

299

Valve Springs Required

No

Intake Duration at .050 Inch Lift

226

Advertised Intake Duration

280

Camshaft Series

Thumpr NSR (No Springs Required)

Great Price and stock availability live update

great

Easy internet usage

IT WAS FAST AND GREAT

Easy to find, verify fit, great price on an obscure item.

Great selection and prices.

na

I didn't know autoplicity existed until today, but I will be using this often! Thanks!

The drop down to check make and model does not have motorcycles in it. Called customer service the other evening and got transfered a few times. Then got told I needed to call the company who makes the item I just bought to check to see if it would fit my bike.

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