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COMP Cams - Stage 2 Thumpr 226/237 Master Camshaft Kit - Gen III LS 4.8/5.3/6.0L Trucks


NOT C.A.R.B. LEGAL / For Off-Road Use ONLY

Please Read the Details Below and Confirm Fitment Before Ordering:

Get Your Valve Spring Compressor Here
Camshaft Gear Attachment: 3-Bolt
Camshaft Material: Billet Steel
Lifter Style: Hydraulic Roller
Engine Family: GM LS GEN III/IV 3-Bolt 8 Cylinder (1997-2015)
Recommended Upgraded Stock Rocker Arms: 1477-16
Recommended Cam Install Kit: 5496
Camshaft Series: Thumpr NSR (No Springs Required)
Usage: Street / Performance
Cam Type: Hydraulic Roller
Basic Operating RPM Range: 1,800-6,600
Intake Duration at .050 Inch Lift: 226
Exhaust Duration at .050 inch Lift: 237
Advertised Intake Duration: 280
Advertised Exhaust Duration: 299
Lobe Separation: 113
Intake Valve Lift: 0.663
Exhaust Valve Lift: 0.638
Lifters Included: Yes
Retainers Included: Yes
Locks Included: Yes
Pushrods Included: Yes
Gaskets Included: No
Valve Springs Included: Yes
Timing Set Included: Yes
Valve Seals Included: Yes
Valve Spring Seats Included: Yes
Assembly Lubricant Included: No
Estimated Horsepower Gain with Kit: 81

WARNING: Cancer and Reproductive Harm

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