1984-1996
1968-1982
1963-1967
1953-1962
Installation Time
(approx) 5 Hours
Difficulty Level:
Mechanical expertise or professional installation required.
Installation Guides
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Find Camshafts for your Corvette
Comp Cams Mutha' Thumpr 235/249 Hydraulic Flat Camshaft K-Kit (55-86 Small Block V8 Corvette C1, C2, C3 & C4)Find parts that fit my vehicle
Item EK-25-908657
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Our Price
$560.95 kit
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Product Information
Features, Description, Q&A, Specs & Installation
Features
- Hydraulic Flat Camshaft K-Kit
- Includes Camshaft, Lifters, Valve Springs, Retainers, Locks, and Timing Set
- Duration of 235/249 At 0.050-Inch Lift
- Valve Lift of 0.489-Inch/0.476-Inch (Intake/Exhaust)
- Lobe Separation Angle of 107 Degrees
- Hydraulic Flat Tappet Camshaft with Aggressive Thumpr Sound
- Strong Mid-Range to Top-End Power
- Ideal For Street Machines and Hot Rods with Lopey Idle
- Works Best With 9.5:1+ Compression and Aftermarket Converter
- Complete K-Kit For Simplified Installation
- Limited 1-Year Warranty
- Fits 1955-1986 Small Block V8 Chevrolet Corvette C1, C2, C3, and C4 Models
Description
Aggressive Street Camshaft Kit. The Comp Cams Mutha' Thumpr 235/249 Hydraulic Flat Camshaft K-Kit is designed to bring race-inspired sound and street-ready performance to your classic Corvette. This cam kit is engineered for small block Chevy V8s and includes everything needed to complete your valvetrain upgrade, from lifters and springs to timing components. Known for its signature "Thumpr" lope, it delivers an aggressive idle and excellent power in the mid to high RPM range.
Construction and Appearance. The camshaft is crafted from high-grade billet steel and features precision-ground lobes for consistency and durability. All accompanying parts, including valve springs, retainers, and locks, are manufactured to exacting standards and finished to resist wear and corrosion. The complete K-Kit setup comes in a clean, OEM-style finish with components that fit seamlessly into the valvetrain of classic small block Chevy engines.
Installation. Installation requires moderate mechanical skill and typically involves removal of the intake manifold and timing cover. Drilling is not required, but proper break-in procedures and matching components such as a performance torque converter are strongly recommended for optimal results.
Warranty. This product includes a 1-year limited warranty from Comp Cams against defects in materials and workmanship.
Application. This Comp Cams Mutha' Thumpr 235/249 Hydraulic Flat Camshaft K-Kit fits 1955-1986 Small Block V8 Chevrolet Corvette C1, C2, C3, and C4 models.
Comp Cams K12-601-4
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- Camshaft
- Lifters
- Valve Springs
- Retainers
- Locks
- Timing Set
Questions & Answers
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Will It Fit My Corvette
- Base - 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 77, 78, 79, 80, 81, 82, 84, 85, 86
- Collector's Edition - 82
- Indianapolis 500 Pace Car - 78, 86
- Silver Anniversary Edition - 78
- Stingray - 75, 76
