Stage 1 Thumpr Hydraulic Roller Cam for GEN III LS 4.8/5.3/6.0L Trucks [Lift .541"/.530"]

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COMP CAMSPART NUMBER: 249-54-700-11

Stage 1 Thumpr Hydraulic Roller Cam for GEN III LS 4.8/5.3/6.0L Trucks [Lift .541"/.530"]

Name: Stage 1 Thumpr Hydraulic Roller Cam for GEN III LS 4.8/5.3/6.0L Trucks [Lift .541"/.530"]
Brand: COMP CAMS
SKU: 249-54-700-11
Price: 323.96 USD
Availability: InStock

^$323⁹⁶$404.95You Save$80.99

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Ships on Sep 14, 2026

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GM LS GEN III/IV 3-Bolt 8-Cylinder 1997-2015
Stage 1 Thumpr

(No Springs Required)

Lift: .541"/.530"
Duration: 272°/291°
Lobe Separation Angle: 111°
RPM Range: 1500-6300

GM, 4.8, 5.3, 5.7, 6.0, 6.2, 7.0, LS1, LS2, LS3, LS4, LS6, LS7, LSA, LS9, Camaro, Silverado, LS Swap, 383, 350, SBC, Chevelle, Yukon, L92, LM7, 325, GMC, Trailblazer, Corvette, GM LS, GEN III, GEN 3, GEN IV, GEN 4, DOD, AFM, VVT, BTR, Texas Speed

Perfect choice for sound & power in performance truck applications. Budget friendly, No Springs Required (NSR) version of extremely popular Thumpr designs.

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.

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Thumpr Camshafts are available in three different grind profiles, each one of which will produce a rough, racy exhaust note and impressive amounts of horsepower and torque at a different rpm range. Their cutting-edge hydraulic roller design means that they will deliver a substantial power increase over an identical hydraulic flat tappet grind without sacrificing reliability or ease of maintenance. So look no further than the Thumpr line of camshafts - engineered to deliver that much sought-after ''thumping'' idle quality to everyone.

Part TypeCamshaft

Product LineComp Cams Thumpr NSR Hydraulic Roller Camshafts

BrandCOMP CAMS

Package Height3.0

Package Width3.0

Package Length24.0

Weight10.265 PG

Part CategoryPerformance Parts

UsageStreet/Performance

Exh. Duration @ .050 In. (Deg)229

Camshaft Gear Attachment3-bolt

Grind Number272LTH11

Exh. Duration Advertised (Deg)291

Engine Make/SizeGM LS GEN III & IV

Int. Duration @ .050 In. (Deg)218

Exhaust Valve Lift0.530 in (13.462 mm)

Intake Duration At 050 Inch Lift218

Exhaust Duration At 050 Inch Lift229

Intake Valve Lift0.541 in (13.741 mm)

Int. Duration Advertised (Deg)272

Lobe Separation (Deg)111

Rpm Range1500-6300

Lifter TypeHydraulic Roller

Part FitmentSemi Universal

Valve Springs RequiredNo

Lifters IncludedNo

Vendor Part Number54-700-11

Package Qty1

Package TypeEA

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Some parts are not legal for use in California or other states with similar laws / regulations

Stage 1 Thumpr Hydraulic Roller Cam for GEN III LS 4.8/5.3/6.0L Trucks [Lift .541"/.530"]

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