BTR-LS3STAGE4 Hydraulic Roller Stage 4 Camshaft for GM Gen IV LS3 Engines

Name: BTR-LS3STAGE4 Hydraulic Roller Stage 4 Camshaft for GM Gen IV LS3 Engines
Brand: BRIAN TOOLEY RACING BTR
SKU: 559-J000013
Price: 409.99 USD
Availability: InStock

^$409⁹⁹

Ships on Sep 14, 2026

Lowest Price Guarantee

LS3 Stage 4 Hydraulic Roller Camshaft

Gen IV LS3 6.2 L Engines

Duration @ .050: 233 Int./250 Ex.

Lift .636 in./.636 in.

LSA 113 deg

Race-Inspired Grind

The BTR-LS3STAGE4 camshaft is engineered for maximum naturally aspirated performance in LS3 engines, producing extreme power and an aggressive lope.

Brian Tooley Racing BTR-LS3STAGE4 Features:

Duration @ .050: 233 Int. / 250 Ex.
Valve Lift: .636 in. Int. / .636 in. Ex.
LSA: 113 deg
High-RPM powerband ideal for race and performance applications
Distinctive lopey idle sound

Brian Tooley Racing BTR-LS3STAGE4 Notes:

Requires dual valve springs, pushrods, and ECU tuning
Best for manual transmission or high-stall converter setups

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

Unlock Maximum LS Power with BTR Camshafts for GM Gen III/IV LS Engines

Brian Tooley Racing (BTR) offers high-performance camshaft solutions tailored for Gen III/IV GM LS platforms, perfect for Silverado/Sierra trucks and LS‑swapped muscle cars. With aggressive grind profiles, durable design, and dyno-proven power gains, these camshafts deliver torque and horsepower increases across the RPM range.BTR's Gen III/IV cam lineup includes the signature Truck Norris, Stage 1, Stage 2, Stage 3, LS1/LS2 Stage 3, LS3 Stage 4, and turbo‑optimized variants like Stage 1 Turbo and Twin Turbo V2. Each cam is CNC-ground from proprietary cores, heat-treated for lasting reliability, and spin- and dyno-tested for peak performance and stability.

Part TypeCamshaft

Product LineBrian Tooley Racing BTR Camshafts for GM Gen III/IV LS Engines

BrandBRIAN TOOLEY RACING BTR

Package Height3.0

Package Width3.0

Package Length25.0

Weight11.0 PG

Intake Valve Lift.636

Lobe Separation Deg113

Part FitmentSemi Universal

Engine Make/SizeGM Gen III/IV LS

Exhaust Valve Lift.636