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Comp Cams

Camshaft, Comp Cams Thumpr, Mutha Thumpr K-Kit, SBC, Retro Hyd Roller

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Part# : CK26018
Mfg#: K12-601-8
Sold As: Each
Ship Size: Standard
$1,834.99
List Price: $2,018.95
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Vehicle Specific View fitment for 7 models
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Small Block Chevrolet 262-400 Mutha Thumpr Hydraulic roller Complete Cam Kit by COMP Cams®

Mutha Thumpr hydraulic roller complete kit combines the matched camshaft and valvetrain components

This Mutha Thumpr hydraulic roller complete cam kit is designed for Small Block Chevrolet 262-400. Valve lift is .521/.507 inch, advertised duration is 291/311 degrees, duration at .050-inch lift is 235/249 degrees, lobe separation is 107 degrees, and the documented operating range is 2200-5900 RPM. High-performance street/strip; rough idle; 9:1 compression and 2500+ stall recommended. The complete K-Kit includes the camshaft, lifters, timing set, valve springs, retainers, locks and valve seals.

• Small Block Chevrolet 262-400 application • Mutha Thumpr hydraulic roller design • Valve lift: .521/.507 inch • Duration @ .050: 235/249 degrees • 107-degree lobe separation • Complete K-Kit valvetrain package

Notes

  • APPLICATION FOOTNOTES: [7] Stock springs cannot be used. [10] Requires thrust button & wear plate.
  • This item is not eligible for any further discounts or promotional pricing.
3
This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only. Learn More
We aim to provide accurate and complete product information. If you notice anything incorrect, missing, or unclear, please let us know.
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Vehicle Fitment

Year Make Model Application Details
1964–1977 Chevrolet Chevelle Small-Block - Retro-fit hydraulic roller [7, 10, 46]
1964–1987 Chevrolet El Camino 1964–1977: Small-Block - Retro-fit hydraulic roller [7, 10, 46]
1978–1987: K Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1983 Chevrolet Malibu K Kit - Retro-fit hydraulic roller [7, 10, 46]
1970–1988 Chevrolet Monte Carlo 1970–1977: Small-Block - Retro-fit hydraulic roller [7, 10, 46]
1978–1988: K Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1988 Oldsmobile Cutlass K Kit - Retro-fit hydraulic roller [7, 10, 46]
1982–1986 Pontiac Bonneville K Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1987 Pontiac Grand Prix K Kit - Retro-fit hydraulic roller [7, 10, 46]
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Camshaft, Comp Cams Thumpr, Mutha Thumpr K-Kit, SBC, Retro Hyd Roller
Comp Cams Camshaft, Comp Cams Thumpr, Mutha Thumpr K-Kit, SBC, Retro Hyd Roller