Description

This Comp Cams 11-601-4 BBC 287TH7 Mutha’ Thumpr Hydraulic Flat Tappet Camshaft fits the 396-454 Big Block Chevy from 1967-1996. Comp designed this cam for high performance street/strip use, and it features strong low-end torque and a rough idle. A 9.0:1 or higher compression ratio, intake, gears & headers, and a 2400+ stall speed torque converter are highly recommended.

Comp Cams 11-601-4 BBC 287TH7 Mutha’ Thumpr Hydraulic Flat Tappet Camshaft Specs:

• For 396-454 cubic inch Big Block Chevy engines from 1967-1996
• Stock (O.E.) valve springs can NOT be used.
• Basic RPM Range: 2000 to 5900
• Valve Lift Intake: .510
• Valve Lift Exhaust: .495
• Advertised Intake Duration: 287
• Advertised Exhaust Duration: 305
  
• 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

Notes: The 1965-66 396 has an oiling groove in the rear journal. This cam does not, so if you require the oiling groove, please contact us for a special order.

Comp Cams designed this Hydraulic Flat Tappet camshaft for high performance on the street and drag strip.

Comp Cams The Absolute Leader In Valve Train Technology!