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Comp Cams

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

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Part# : CL26028
Mfg#: CL12-602-8
Sold As: Each
Ship Size: Standard
$1,212.99
List Price: $1,334.95
You Save $121.96

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Vehicle Specific View fitment for 10 models
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Small Block Chevrolet 262-400 Big Mutha Thumpr Hydraulic roller Cam & Lifter Kit by COMP Cams®

Big Mutha Thumpr hydraulic roller cam-and-lifter kit pairs the selected grind with matched lifters

This Big Mutha Thumpr hydraulic roller cam & lifter kit is designed for Small Block Chevrolet 262-400. Valve lift is .531/.517 inch, advertised duration is 299/319 degrees, duration at .050-inch lift is 243/257 degrees, lobe separation is 107 degrees, and the documented operating range is 2500-6200 RPM. Street/strip; very rough idle; 9.5:1 compression and 2800+ stall recommended. The CL-Kit includes the camshaft and matched lifters.

• Small Block Chevrolet 262-400 application • Big Mutha Thumpr hydraulic roller design • Valve lift: .531/.517 inch • Duration @ .050: 243/257 degrees • 107-degree lobe separation • Camshaft and matched lifters included

Notes

  • APPLICATION FOOTNOTES: [7] Stock springs cannot be used. [10] Requires thrust button & wear plate. [46] Must use bronze tip fuel pump push rod when using high pressure or high volume pump.
  • 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
1982 Buick Grand National CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1984–1987 Buick Grand National CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1987 Buick Regal CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1983–1986 Buick T-Type CL Kit - Retro-fit hydraulic roller [7, 10, 46]
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: CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1983 Chevrolet Malibu CL 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: CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1988 Oldsmobile Cutlass CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1982–1986 Pontiac Bonneville CL Kit - Retro-fit hydraulic roller [7, 10, 46]
1978–1987 Pontiac Grand Prix CL Kit - Retro-fit hydraulic roller [7, 10, 46]
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Camshaft, Comp Cams Thumpr, Big Mutha Thumpr CL-Kit, SBC, Retro Hyd Roller
Comp Cams Camshaft, Comp Cams Thumpr, Big Mutha Thumpr CL-Kit, SBC, Retro Hyd Roller