Description

Stage 1 Thumpr Master Cam Kit for GEN IV LS 4.8/5.3/6.0L Trucks 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. See MK54-703-11 for Stage 2 Master Cam Kit.

• Specifications

  • Advertised Exhaust Duration: 295 DD
  • Advertised Intake Duration: 276 DD
  • Assembly Lubricant Included: No
  • Basic Operating RPM Range: 1 800-6 400 R3
  • Cam Type: Hydraulic Roller
  • Camshaft Gear Attachment: 3-Bolt
  • Camshaft Material: Billet Steel
  • Camshaft Series: Thumpr NSR (No Springs Required)
  • Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
  • Estimated Horsepower Gain with Kit:75 HJ
  • Exhaust Duration at .050" Lift: 233 DD
  • Exhaust Valve Lift: 0.536"
  • Gaskets Included: No
  • Grind Number: 276LTH12
  • Intake Duration at .050" Lift: 222 DD
  • Intake Valve Lift: 0.541"
  • Kit Type:MK-Kit
  • Lifter Type: Hydraulic Roller
  • Lifters Included: Yes
  • Lobe Separation: 112 DD
  • Locks Included: Yes
  • Pushrods Included: Yes
  • Recommended Cam Install Kit: 5621
  • Recommended Max-Lift BSR Shaft Rocker System: 1981-16
  • Recommended Upgraded Stock Rocker Arms: 1477-16
  • Retainers Included: Yes
  • Stage: 1
  • Timing Set Included:Yes
  • Usage: Street / Performance
  • Valve Seals Included: Yes
  • Valve Spring Seats Included: Yes
  • Valve Springs Included: Yes

• Product Fits

  • Buick Rainier 2007-2007
  • Cadillac Escalade 2009-2012
  • Chevrolet Avalanche 2007-2012
  • Chevrolet Cheyenne 2007-2009
  • Chevrolet Colorado 2009-2012
  • Chevrolet Express 1500 2007-2012
  • Chevrolet Express 2500 2007-2012
  • Chevrolet Express 3500 2007-2012
  • Chevrolet Express Cargo 2010-2012
  • Chevrolet Express Pasajeros 2009-2012
  • Chevrolet Silverado 1500 2007-2012
  • Chevrolet Silverado 1500 Classic 2007-2007
  • Chevrolet Silverado 2500 2007-2009
  • Chevrolet Silverado 2500 HD 2009-2012
  • Chevrolet Silverado 3500 2009-2012
  • Chevrolet Silverado 3500 HD 2009-2012
  • Chevrolet Suburban 1500 2007-2012
  • Chevrolet Suburban 2500 2009-2012
  • Chevrolet Tahoe 2007-2012
  • Chevrolet Trailblazer 2009-2009
  • GMC Canyon 2009-2012
  • GMC Envoy 2007-2009
  • GMC Savana 1500 2007-2012
  • GMC Savana 2500 2007-2012
  • GMC Savana 3500 2007-2012
  • GMC Sierra 1500 2007-2012
  • GMC Sierra 1500 Classic 2007-2007
  • GMC Sierra 2011-2012
  • GMC Sierra 2500 HD 2009-2012
  • GMC Sierra 3500 HD 2009-2012
  • GMC Yukon 2007-2012
  • GMC Yukon XL 1500 2007-2012
  • GMC Yukon XL 2500 2009-2012
  • Hummer H3 2008-2010
  • Hummer H3T 2009-2010