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The LST Camshaft Series uses the newest and most advanced lobe designs from COMP Cams. These new lobes provide the potential for major increases in power and torque in Duramax engines when combined with the appropriate tuning. The “Low Shock Technology” features lobe profiles designed to maximize additional engine airflow, which reduces harmful EGTs, while improving stability at higher RPM. These profiles are also easier on the valve springs, enhancing durability and reducing load loss. Organized into stages that allow you to choose your level of performance, Stage 1 Camshafts are No Springs Required and run well with the factory or a performance tune. Stage 2 and 3 camshafts require a COMP Cams #26125 Beehive Valve Spring Kit upgrade but do produce the greatest potential for additional power and RPM when matched with maximum effort tuning.
NSR / NTR No Springs Required and works even with factory tune! This is the grind that should have come from the factory for the Duramax. Instant response & performance gains across the board.
See 132-302-13 for Stage 2, See 132-303-13 for Stage 3
2001-2016 GM 6600/6.6L Duramax Diesel

The Stage 1 LST Master Cam Kit for Manual LS3 Camaro/Corvette delivers the best average HP over a wide RPM range, ideal for serious street/track cars. Includes lifters, timing set, pushrods, springs, retainers, locks, seats and seals.
See MK54-301-11 for Stage 1 Master Cam Kit that is designed for stock piston applications.
Chevrolet: Camaro 10 – 16 6.2 L Engine, Chevrolet: SS 14 – 16 6.2 L Engine, Chevrolet: Corvette 08 – 13 6.2 L Engine

Stage 1 LST 243/254 Hydraulic Roller Cam
Best average HP over wide RPM range. Requires aftermarket pistons w/ valve reliefs. Perfect for serious LS3 street and track build. 7500 RPM stability with CK and MK Kits.
CK and MK camshaft kits are available for this camshaft. Add CK or MK to the beginning of this part number for a CK or MK Kit with appropriately matched valvetrain parts.
Chevrolet: Camaro 10 – 15 6.2 L Engine, Chevrolet: Corvette 08 – 13 6.2 L Engine

Stage 1 No Springs Required LST Hydraulic Roller Cam
No Springs Required and works even with factory tune! This is the grind that should have come from the factory for the 6.0L and 6.4L PowerStroke Fords. Instant response and performance gains across the board.
See 435-301-13 for Stage 2 NSR cam

Stage 1 LST 227/238 Hydraulic Roller Master Cam Kit for LT1 Camaro and Corvette with AFM Delete
The Stage 1 LST Master Cam Kit for LT1 GEN V Camaro and C7 Corvette has a broad powerband with the best average torque and HP. Deletes AFM and includes lifters, VVT limiter, pushrods, dual springs, retainers, locks, spring seats and seals.
See MK224-302-13 for Stage 2.
Chevrolet: Camaro 16 – 19 6.2 L Engine, Chevrolet: Corvette 14 – 19 6.2 L Engine

The Stage 1 Thumpr Master Cam Kit for LS GEN III 4.8-6.0L is the perfect choice for sound and power in performance trucks. Includes lifters, timing set, pushrods, LS6+ springs, retainers, locks, spring seats and seals.
See MK54-702-11 for Stage 2 Master Cam Kit.
Workhorse: FasTrack FT1801 04 – 05 6 L Engine, Workhorse: FasTrack FT1461 04 – 05 6 L Engine, Chevrolet: SSR 05 – 06 6 L Engine, Chevrolet: Avalanche 07 – 08 6 L Engine, GMC: Sierra 3500 Classic 07 – 07 6 L Engine, GMC: Sierra 2500 HD Classic 07 – 07 6 L Engine, Chevrolet: Silverado 3500 Classic 07 – 07 6 L Engine, Cadillac: Escalade EXT 02 – 06 6 L Engine, Cadillac: Escalade ESV 03 – 06 6 L Engine, Workhorse: FasTrack FT1601 04 – 05 4.8 L Engine, Workhorse: FasTrack FT1461 04 – 05 4.8 L Engine, GMC: Sierra 3500 HD 07 – 08 6 L Engine, Workhorse: FasTrack FT1061 04 – 05 4.8 L Engine, Chevrolet: Sonora 03 – 06 5.3 L Engine, GMC: Sierra 1500 01 – 08 6 L Engine, Chevrolet: Cargo Van 04 – 04 6 L Engine, GMC: Savana 3500 03 – 08 6 L Engine, GMC: Yukon 00 – 06 5.3 L Engine, Chevrolet: Silverado 2500 06 – 06 4.8 L Engine, Chevrolet: Suburban 1500 00 – 06 5.3 L Engine, GMC: Sierra 1500 HD 01 – 06 6 L Engine, Chevrolet: Express 3500 03 – 08 6 L Engine, GMC: Yukon 00 – 06 4.8 L Engine, Chevrolet: Avalanche 1500 02 – 06 5.3 L Engine, Isuzu: Ascender 03 – 06 5.3 L Engine, Chevrolet: Trailblazer 06 – 06 5.3 L Engine, Saab: 9-7x 05 – 06 5.3 L Engine, GMC: Yukon 01 – 08 6 L Engine, Cadillac: Escalade 02 – 05 5.3 L Engine, GMC: Yukon XL 2500 00 – 08 6 L Engine, Chevrolet: Express 3500 03 – 06 4.8 L Engine, GMC: Sierra 1500 99 – 06 5.3 L Engine, Pontiac: Grand Prix 05 – 06 5.3 L Engine, Chevrolet: Silverado 2500 99 – 06 5.3 L Engine, Chevrolet: Tahoe 00 – 06 5.3 L Engine, Chevrolet: SSR 03 – 04 5.3 L Engine, Cadillac: Escalade 02 – 06 6 L Engine, Chevrolet: Silverado 1500 99 – 06 5.3 L Engine, Chevrolet: Express 2500 03 – 08 6 L Engine, Workhorse: FasTrack FT1261 05 – 05 4.8 L Engine, Chevrolet: Express 2500 03 – 05 5.3 L Engine, GMC: Yukon XL 1500 01 – 08 6 L Engine, Chevrolet: Trailblazer EXT 03 – 06 5.3 L Engine, Chevrolet: Silverado 1500 99 – 06 4.8 L Engine, Buick: Rainier 04 – 06 5.3 L Engine, Chevrolet: Trailblazer 06 – 08 6 L Engine, Chevrolet: Express 3500 03 – 06 5.3 L Engi

The Stage 1 Thumpr Master Cam Kit for LS Gen IV 4.8-6.0L is the perfect choice for sound and power in performance trucks. Includes lifters, timing set, Pushrods, LS6+ springs, retainers, locks, spring seats and Seals.
The Stage 1 Thumpr Master Cam Kit for LS GEN IV 4.8-6.0L is the perfect choice for a strong idle lope with great power gains in 4.8-5.3L trucks. Includes lifters, timing set, pushrods, LS6+ springs, retainers, locks, spring seats and seals.
See MK54-703-11 for Stage 2 Master Cam Kit.
Saab: 9-7x 09 – 09 6 L Engine, Chevrolet: Express Pasajeros 09 – 12 6 L Engine, Chevrolet: Avalanche 09 – 09 6 L Engine, Chevrolet: Express Cargo 09 – 09 5.3 L Engine, GMC: Sierra 1500 Classic 07 – 07 5.3 L Engine, GMC: Savana 3500 09 – 12 6 L Engine, GMC: Savana 2500 09 – 12 6 L Engine, Chevrolet: Express 3500 07 – 12 4.8 L Engine, Chevrolet: Express Cargo 10 – 12 6 L Engine, Chevrolet: Silverado 2500 07 – 12 5.3 L Engine, Chevrolet: Express 1500 07 – 12 5.3 L Engine, Chevrolet: Express 2500 07 – 12 4.8 L Engine, GMC: Sierra 07 – 12 5.3 L Engine, GMC: Savana 2500 07 – 12 4.8 L Engine, Chevrolet: Silverado 2500 07 – 12 4.8 L Engine, Chevrolet: Suburban 1500 07 – 12 5.3 L Engine, GMC: Yukon 07 – 12 5.3 L Engine, Chevrolet: Express Pasajeros 09 – 12 5.3 L Engine, Hummer: H3 08 – 10 5.3 L Engine, Chevrolet: Express 3500 09 – 12 6 L Engine, Hummer: H3T 09 – 10 5.3 L Engine, GMC: Canyon 09 – 12 5.3 L Engine, Chevrolet: Avalanche 07 – 12 5.3 L Engine, Chevrolet: Silverado 1500 07 – 12 5.3 L Engine, Chevrolet: Express 2500 09 – 12 6 L Engine, Chevrolet: Silverado 1500 07 – 12 4.8 L Engine, GMC: Yukon XL 2500 09 – 12 6 L Engine, Chevrolet: Trailblazer 07 – 08 5.3 L Engine, GMC: Sierra 3500 HD 09 – 12 6 L Engine, Saab: 9-7x 07 – 09 5.3 L Engine, GMC: Yukon 09 – 12 6 L Engine, Chevrolet: Colorado 09 – 12 5.3 L Engine, GMC: Yukon 07 – 09 4.8 L Engine, GMC: Savana 3500 07 – 12 4.8 L Engine, Chevrolet: Tahoe 09 – 12 6 L Engine, Chevrolet: Trailblazer 09 – 09 6 L Engine, Chevrolet: Tahoe 07 – 09 4.8 L Engine, Chevrolet: Express 3500 07 – 08 5.3 L Engine, GMC: Savana 1500 07 – 12 5.3 L Engine, GMC: Sierra 1500 09 – 12 6 L Engine, Chevrolet: Silverado 3500 09 – 12 6 L Engine, GMC: Yukon XL 1500 07 – 12 5.3 L Engine, Chevrolet: Tahoe 07 – 12 5.3 L Engine, Cadillac: Escalade 09 – 12 6 L Engine, Chevrolet: Silverado 1500 09 – 12 6 L Engine, GMC: Envoy 07 – 09 5.3 L Engine, GMC: Sierra 1500 07 – 12 4.8 L Engine, GMC: Sierra 1500 07 – 12 5.3 L Engine, Buick: Rainier 07 – 07 5.3 L Engine

Stage 1 Thumpr 222/233 Hydraulic Roller Cam
Perfect choice for strong idle lope and great power in 4.8 & 5.3L truck engines. No Springs Required (NSR) version of popular Thumpr lobe designs. AFM & VVT delete.
CK and MK camshaft kits are available for this camshaft. Add CK or MK to the beginning of this part number for a CK or MK Kit with appropriately matched valvetrain parts.
GMC: Sierra 08 – 16 6.2 L Engine, Chevrolet: Silverado 2500 06 – 13 4.8 L Engine, Chevrolet: Express Cargo 09 – 09 5.3 L Engine, Chevrolet: Silverado 1500 Classic 07 – 07 4.8 L Engine, Saab: 9-7x 09 – 09 6 L Engine, Chevrolet: Tahoe 08 – 09 6.2 L Engine, Cadillac: Escalade 02 – 05 5.3 L Engine, Pontiac: G8 08 – 09 6 L Engine, GMC: Yukon XL 2500 09 – 13 6 L Engine, Chevrolet: Suburban 1500 07 – 13 6 L Engine, Chevrolet: Suburban 2500 09 – 13 6 L Engine, Chevrolet: Monte Carlo 06 – 07 5.3 L Engine, GMC: Sierra 2500 99 – 00 5.3 L Engine, Chevrolet: Corvette 06 – 13 7 L Engine, Chevrolet: Silverado 1500 Classic 07 – 07 5.3 L Engine, Hummer: H2 04 – 07 6 L Engine, Chevrolet: Corvette 05 – 07 6 L Engine, GMC: Sierra 2500 HD 09 – 19 6 L Engine, GMC: Yukon XL 1500 07 – 09 6 L Engine, GMC: Envoy XUV 04 – 05 5.3 L Engine, GMC: Envoy 05 – 09 5.3 L Engine, Chevrolet: Avalanche 07 – 13 5.3 L Engine, Chevrolet: Silverado 3500 HD 09 – 19 6 L Engine, Chevrolet: Silverado 1500 09 – 13 6.2 L Engine, Cadillac: Escalade EXT 07 – 13 6.2 L Engine, Pontiac: G8 09 – 09 6.2 L Engine, Cadillac: Escalade 07 – 16 6.2 L Engine, GMC: Canyon 09 – 12 5.3 L Engine, Saab: 9-7x 05 – 09 5.3 L Engine, GMC: Yukon 08 – 13 6 L Engine, Buick: Allure 08 – 09 5.3 L Engine, GMC: Savana 2500 03 – 05 5.3 L Engine, Chevrolet: Avalanche 1500 02 – 06 5.3 L Engine, Chevrolet: Express 3500 07 – 17 4.8 L Engine, GMC: Savana 2500 07 – 17 4.8 L Engine, GMC: Sierra 1500 Classic 07 – 07 4.8 L Engine, Chevrolet: Silverado 1500 99 – 13 5.3 L Engine, GMC: Sierra 1500 07 – 13 6.2 L Engine, Chevrolet: Express Cargo 10 – 17 6 L Engine, Cadillac: Escalade 06 – 13 6 L Engine, Chevrolet: Corvette 08 – 13 6.2 L Engine, Chevrolet: Tahoe 00 – 14 5.3 L Engine, GMC: Yukon XL 1500 00 – 14 5.3 L Engine, Chevrolet: Silverado 3500 08 – 18 6 L Engine, Chevrolet: Avalanche 07 – 09 6 L Engine, Chevrolet: Suburban 1500 00 – 14 5.3 L Engine, Chevrolet: Cheyenne 14 – 16 6.2 L Engine, Chevrolet: Silverado 2500 99 – 16 5.3 L Engine, GMC: Yukon 00