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COMP Cams MK54-702-11 Stage 2 Thumpr Master Cam Kit for LS Truck 4.8L 5.3L 6.0L

(Chevrolet Silverado 1500 1999-2008, Silverado 1500 HD 2001-03, 2005-06, Suburban 1500 2000-08, Silverado 2500 HD 2001-08, Tahoe 2000-06, 2008 + 44 more models)

Manufacturer

Picture for manufacturer COMP Cams

Part Number

MK54-702-11
6 reviews
Sale Price

$1,353.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The COMP Cams Stage 2 Thumpr Master Cam Kit is a comprehensive performance camshaft package engineered specifically for Gen III LS truck engines including 4.8L, 5.3L, and 6.0L applications. This complete master kit includes everything needed for a professional camshaft installation, delivering the signature aggressive idle and improved performance characteristics that the Thumpr series is known for.

Key Features:

  • Stage 2 Thumpr camshaft profile designed for LS truck engines with increased lift and duration
  • Aggressive lopey idle sound with strong mid-range torque and horsepower gains
  • Complete master kit includes camshaft, valve springs, retainers, locks, pushrods, timing set, and assembly lubricant
  • Engineered for Gen III LS engines: 4.8L, 5.3L, and 6.0L truck applications
  • High-quality valve train components matched to camshaft specifications
  • Ideal for street/strip trucks and performance-oriented daily drivers
  • May require computer tuning for optimal performance

This master kit provides all the essential components for a complete cam swap, eliminating the need to source individual parts separately. The Stage 2 Thumpr profile offers more aggressive performance than Stage 1 while maintaining reasonable street manners, making it an excellent choice for enthusiasts seeking that distinctive muscle car sound combined with substantial power gains in their LS-powered truck.

Products specifications

Fits

Chevrolet Silverado 1500 1999-2008, Silverado 1500 HD 2001-03, 2005-06, Suburban 1500 2000-08, Silverado 2500 HD 2001-08, Tahoe 2000-06, 2008, Impala 2006, Trailblazer 2006-08, Monte Carlo 2006, Avalanche 1500 2002-06 + 40 more models

Basic Operating RPM Range

1,800-6,600

Locks Included

Yes

Pushrods Included

Yes

Retainers Included

Yes

Engine Family

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

Exhaust Valve Lift

0.638

Intake Valve Lift

0.663

Kit Type

MK-Kit

Recommended Upgraded Stock Rocker Arms

1477-16

Recommended Max-Lift BSR Shaft Rocker System

1981-16

Grind Number

280LTH13

Recommended Cam Install Kit

5621

Estimated Horsepower Gain with Kit

81

AMAZON ASIN

B07MJH8WVG

Timing Set Included

Yes

Valve Seals Included

Yes

Valve Spring Seats Included

Yes

Assembly Lubricant 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.

Gaskets Included

No

Camshaft Gear Attachment

3-Bolt

LOBE SEPARATION

113

Lifter Type

Hydraulic Roller

Exhaust Duration at .050 inch Lift

237

Cam Type

Hydraulic Roller

Lifters Included

Yes

Stage

2

Usage

Street / Performance

Camshaft Material

Billet Steel

Advertised Exhaust Duration

299

Valve Springs Included

Yes

Intake Duration at .050 Inch Lift

226

Advertised Intake Duration

280

Camshaft Series

Thumpr NSR (No Springs Required)

excellent

The part (hood insulation pad) was competitively priced. Shipping costs were reasonable and delivery time was good. I'm glad I found Autoplicity on the Internet.

Items were packaged very well, super fast standard shipping, price was half of local venders.

Love it.

I can't wait for parts

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