Installation Time
(approx) 5 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
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Comp Cams Big Mutha Thumpr 235/249 Hydraulic Roller Camshaft (07-14 Yukon)Find parts that fit my vehicle
Item GY15945
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features
- Hydraulic Roller Cam Type
- Thumpr Camshaft Series
- 3-Bolt Camshaft Gear Attachment
- RPM Operating Range 2,600-6,800
- Advertised Intake Duration 291
- Advertised Exhaust Duration 311
- Intake Duration At .050 Inch Lift 235
- Exhaust Duration .050 Inch Lift 249
- Intake Valve Lift 0.573
- Exhaust Valve Lift 0.558
- Lobe Lift Intake 0.338
- Lobe Lift Exhaust 0.329
- Lobe Separation 109
- Intake Centerline 103
- Valve Timing Lift 0.006
- Exhaust Close ATDC 46
- Intake Open BTDC 41
- Exhaust Open BBDC 85
- Intake Close ABDC 70
- Lifter Type Hydraulic Roller
- Usage Street/Street-Strip
- Performance Package No
- Fits 07-14 Yukon
Description
High-Performance Camshaft. The Comp Cams Big Mutha Thumpr 235/249 Hydraulic Roller Camshaft is engineered to enhance engine performance by optimizing valve timing and lift. Designed for street and street/strip use, it delivers improved power and throttle response across a broad RPM range. This camshaft is a key upgrade for LS GEN III/IV engines, featuring a distinctive exhaust note and increased horsepower potential.
Construction and Appearance. Made from high-grade materials, this hydraulic roller camshaft features precision-ground lobes and a durable roller design to reduce wear and enhance longevity. It is built for smooth operation under demanding conditions.
Installation. This camshaft offers a direct-fit 3-bolt gear attachment, requiring no drilling. It fits OEM lifter bores and is compatible with hydraulic roller lifters, making installation straightforward for those with moderate mechanical skills.
Warranty. The camshaft includes a 12-month limited warranty covering manufacturing defects and performance reliability.
Application. Specifically designed to fit 07-14 Yukon.
Comp Cams 54-602-11
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Camshaft
5.0
Customer Reviews (1)
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