Description
This Comp Cams 12-601-8 SBC 291THR7 Mutha’ Thumpr Retro-Fit Hydraulic Roller Camshaft fits the 262-400 Small Block Chevy from 1958-1998. Comp designed this cam for high performance street/strip use, and it features great low-end torque and a rough idle. A 9.0:1 or higher compression ratio, intake, headers, gears and a 2600+ stall speed torque converter are highly recommended.
Comp Cams 12-601-8 SBC 291THR7 Mutha’ Thumpr Retro-Fit Hydraulic Roller Camshaft Specs:
- For 262-400 cubic inch Small Block Chevy engines from 1958-1998
- Requires thrust button & wear plate
- Must use bronze tip fuel pump pushrod when using high pressure or high-volume pump
- Stock (O.E.) valve springs can NOT be used
- Basic RPM Range: 2200 to 5900
- Valve Lift Intake: .521
- Valve Lift Exhaust: .507
- Advertised Intake Duration: 291
- Advertised Exhaust Duration: 311
- Intake Duration at .050: 235
- Exhaust Duration at .050: 249
- Lobe Separation: 107
- Firing Order: 1-8-4-3-6-5-7-2
- Made in the USA
Comp Cams designed this Retro-Fit Hydraulic Roller camshaft for high performance on the street and drag strip.
Comp Cams The Absolute Leader In Valve Train Technology!
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