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COMP CamsMore from COMP Cams

COMP Cams Stage 2 Thumpr Master Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks

Part # MK54-703-11SKU COMMK54-703-11

Universal fit

Specifications
BrandCOMP Cams
Part typeEngine Camshaft Kit
Advertised Exhaust Duration299 deg
Advertised Intake Duration282 deg
Amazon ASINB07MQB7F54
Assembly Lubricant IncludedNo
Basic Operating RPM Range1,800-6,600 RPM
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.
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.
Cam TypeHydraulic Roller
Camshaft Gear Attachment3-Bolt
Camshaft MaterialBillet Steel
Camshaft SeriesThumpr NSR (No Springs Required)
Engine FamilyGM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
Estimated Horsepower Gain with Kit89
Exhaust Duration at .050 inch Lift237 deg
Exhaust Valve Lift0.612 in
Gaskets IncludedNo
Grind Number282LTH13
Intake Duration at .050 Inch Lift227 deg
Intake Valve Lift0.614 in
Kit TypeMK-Kit
Lifter TypeHydraulic Roller
Lifters IncludedYes
Lobe Separation113 deg
Locks IncludedYes
Pushrods IncludedYes
Recommended Cam Install Kit5621
Recommended Max-Lift BSR Shaft Rocker System1981-16
UPC / GTIN00036584387657

Description

The Stage 2 Thumpr Master Cam Kit for LS GEN IV 5.3-6.0L provides an awesome idle lope in modified 5.3L & 6.0L trucks. Includes lifters, timing set, pushrods, dual springs, retainers, locks, spring seats and valve seals.

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