COMP Cams · New
COMP Cams Stage 2 Thumpr 227/237 Master Camshaft Kit GEN4 LS 4.8/5.3/6.0L
MPN MK54-703-11 · Store SKU ccaMK54-703-11
$1,580.95
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Supplier stock checked 11/7/2026, 10:28:21 AM UTC. Adding a part does not reserve it.
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Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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. Stage 2 Thumpr Master Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks
Manufacturer fitment & guides
- 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, Chevrolet: Express Pasajeros 09 - 12 5.3 L Engine, GMC: Sierra 3500 HD 09 - 12 6 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 3500 09 - 12 6 L Engine, Hummer: H3 08 - 10 5.3 L Engine, Chevrolet: Trailblazer 07 - 08 5.3 L Engine, Chevrolet: Silverado 1500 07 - 12 5.3 L Engine, Chevrolet: Express 2500 09 - 12 6 L Engine, Chevrolet: Avalanche 07 - 12 5.3 L Engine, Chevrolet: Silverado 1500 Classic 07 - 07 5.3 L Engine, GMC: Sierra 2500 HD 09 - 12 6 L Engine, Chevrolet: Express Cargo 10 - 12 6 L Engine, Chevrolet: Silverado 2500 07 - 12 5.3 L Engine, GMC: Yukon XL 2500 09 - 12 6 L Engine, GMC: Sierra 1500 07 - 12 5.3 L Engine, GMC: Savana 3500 09 - 12 6 L Engine, GMC: Canyon 09 - 12 5.3 L Engine, Chevrolet: Tahoe 09 - 12 6 L Engine, GMC: Savana 3500 07 - 12 4.8 L Engine, Saab: 9-7x 09 - 09 6 L Engine, GMC: Yukon 09 - 12 6 L Engine, Saab: 9-7x 07 - 09 5.3 L Engine, GMC: Sierra 1500 07 - 12 4.8 L Engine, Chevrolet: Silverado 1500 07 - 12 4.8 L Engine, Chevrolet: Express 3500 07 - 12 4.8 L Engine, Chevrolet: Silverado 3500 09 - 12 6 L Engine, GMC: Yukon XL 1500 07 - 12 5.3 L Engine, GMC: Envoy 07 - 09 5.3 L Engine, Chevrolet: Silverado 1500 09 - 12 6 L Engine, Chevrolet: Tahoe 07 - 12 5.3 L E
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
