Comp Cams CL11-602-4 BBC Big Mutha Thumpr Hydraulic Flat Tappet Camshaft and Lifter Kit

This Comp Cams CL11-602-4 BBC Big Mutha Thumpr Hydraulic Flat Tappet Camshaft & Lifter Kit fits 396-454 Big Block Chevy engines from 1967-1996. Comp designed this cam for high performance street/strip use, and it features a very rough idle. Headers, intake, lower rear end gears, a 9.5:1+ compression ratio and 2800+ stall speed torque converter are highly recommended.

Comp Cams CL11-602-4 BBC Big Mutha Thumpr Hydraulic Flat Tappet Camshaft & Lifter Kit Specs:

• For Big Block Chevy 396-454 cubic inch engines from 1967-1996
• Includes Camshaft 11-602-4 and Lifter Set 812-16
• Stock (O.E.) valve springs can NOT be used.
• Basic RPM Range: 2300 to 6200
• Valve Lift Intake: .522
• Valve Lift Exhaust: .507
• Advertised Intake Duration: 295
• Advertised Exhaust Duration: 312
• Intake Duration at .050”: 243
• Exhaust Duration at .050”: 257
• 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 as well as the drag strip.

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