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Find Camshafts for your Corvette

Comp Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Camshaft (55-86 Small Block V8 Corvette C1, C2, C3 & C4)Find parts that fit my vehicle

Item EK-25-908525
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$272.95 each

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Comp Cams Big Mutha' Thumpr Hydraulic Flat Camshaft
      • Polished Chrome and Matte Black Finish
      • Street or Strip Use
      • Compression of 9.5:1
      • Stall at 2,800+
      • Includes Intake Gears and Headers
      • For Use with Chevrolet Small Block 262-400 Engines
      • Intake Duration of 243
      • Exhaust Duration of 257
      • Direct Replacement
      • Comes in Singles
      • Fits 1955-1986 Small Block V8 Corvette C1, C2, C3, and C4 Models

      Description

      Enhanced Performance for Your Classic Corvette. The Comp Cams Big Mutha' Thumpr Hydraulic Flat Camshaft is engineered for optimal performance in street or strip applications. Designed specifically for 1955-1986 Chevrolet Small Block V8 Corvette models, this camshaft delivers aggressive idle characteristics and improved power for high-performance driving enthusiasts.

      Construction and Features. Finished in polished chrome and matte black, this camshaft combines durability with sleek aesthetics. It offers an intake duration of 243 and an exhaust duration of 257, designed to maximize airflow and performance. With a compression ratio of 9.5:1 and a stall at 2,800+, it delivers a robust power curve for demanding applications. The included intake gears and headers complement the camshaft for a complete performance upgrade.

      Installation. This camshaft is designed as a direct replacement for Chevrolet Small Block 262-400 engines, ensuring a straightforward installation process. Its precision engineering eliminates the need for significant modifications, making it a hassle-free upgrade for your classic Corvette.

      Application. The Comp Cams Big Mutha' Thumpr Hydraulic Flat Camshaft fits 1955-1986 Small Block V8 Corvette C1, C2, C3, and C4 models. Whether for street or strip use, this camshaft enhances your vehicle's performance and delivers a distinct and aggressive engine sound that sets your Corvette apart.

      Fitment:

      • 1955 Chevrolet Corvette
      • 1956 Chevrolet Corvette
      • 1957 Chevrolet Corvette
      • 1958 Chevrolet Corvette
      • 1959 Chevrolet Corvette
      • 1960 Chevrolet Corvette
      • 1961 Chevrolet Corvette
      • 1962 Chevrolet Corvette
      • 1963 Chevrolet Corvette
      • 1964 Chevrolet Corvette
      • 1965 Chevrolet Corvette
      • 1966 Chevrolet Corvette
      • 1967 Chevrolet Corvette
      • 1968 Chevrolet Corvette
      • 1969 Chevrolet Corvette
      • 1970 Chevrolet Corvette
      • 1971 Chevrolet Corvette
      • 1972 Chevrolet Corvette
      • 1973 Chevrolet Corvette
      • 1974 Chevrolet Corvette
      • 1975 Chevrolet Corvette
      • 1976 Chevrolet Corvette
      • 1977 Chevrolet Corvette
      • 1978 Chevrolet Corvette
      • 1979 Chevrolet Corvette
      • 1980 Chevrolet Corvette
      • 1981 Chevrolet Corvette
      • 1982 Chevrolet Corvette
      • 1984 Chevrolet Corvette
      • 1985 Chevrolet Corvette
      • 1986 Chevrolet Corvette
      Details

      Comp Cams 12-602-4

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

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 5 Hours

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Camshaft

      Questions & Answers

      No questions about this product yet. Ask the First Question

      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