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Comp Cams Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit (67-74 Big Block V8 Corvette C2 & C3)Find parts that fit my vehicle

Item EK-25-907719
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$1,545.95 kit

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit
      • High-Performance Hydraulic Roller Camshaft Kit
      • Provides Aggressive Idle and Increased Exhaust Note
      • Optimized for Street and Performance Applications
      • Enhances Throttle Response, Power, and Torque
      • High-Quality Steel Construction for Durability
      • Two-Hour Installation
      • One-Year Limited Warranty
      • Fits 1967-1974 Big Block V8 Corvette C2 & C3 Models

      Description

      High‑Revving Street/Strip Camshaft Upgrade. The Comp Cams Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit is a serious performance upgrade for Big‑Block Chevrolet V8 engines, including 1967–1974 Corvette C2 and C3 models equipped with 396–454 ci powerplants. With aggressive specs, 235° intake and 249° exhaust duration at .050″ lift, this cam targets a powerband from approximately 2,200 to 5,900 RPM.

      Aggressive Valve Timing for Thrilling Idle and Mid‑Range Punch. The early intake valve opening and extended exhaust duration on this Comp Cams Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit create a powerful mid-range surge and a distinctive exhaust note. The result is a deep, aggressive lope at idle and strong torque delivery through the mid-RPM range. Ideal for street/strip builds, this cam performs best when paired with supporting mods like headers, high-flow intake, proper rear gearing, and a suitable compression ratio.

      Hydraulic Roller Design for Modern Reliability and Compatibility. Unlike traditional flat-tappet cams, this Comp Cams Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit design reduces internal friction and wear, improving longevity and reliability. It works with OE-style roller lifters or upgraded equivalents, making it a practical choice for modern high-performance builds.

      Installation. Putting this Comp Cams Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit on your Big Block V8 Corvette C2 & C3 takes 2 hours to install.

      Warranty. There is a 1-year limited warranty on this product.

      Application. The Comp Cams Mutha' Thumpr 235/249 Hydraulic Roller Camshaft K-Kit fits 1967-1974 Big Block V8 Corvette C2 & C3 models.

      Comp Cams K11-601-8

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 2 Hours

      Difficulty Level:

      Light to Moderate mechanical skill required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Mutha' Thumpr Camshaft
      • (1) Set of Hydraulic Roller Lifters
      • (1) Set of Valve Springs
      • (1) Set of Retainers and Locks
      • (1) Camshaft Bearing Set
      • Instructional Manual
      4.7

      Reviews of Comp Cams Engine Products (357)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Corvette

      • Base - 67, 68, 69, 70, 71, 72, 73, 74