Description
This Comp Cams 21-601-5 BBM 287TH7 Mutha’ Thumpr Hydraulic Flat Tappet Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Comp designed this cam for high performance street/strip use, and it features strong torque and a rough idle. A 9.0:1 or higher compression ratio, intake, gears, headers and a 2600+ stall speed torque converter are highly recommended.
Comp Cams 21-601-5 BBM 287TH7 Mutha’ Thumpr Hydraulic Flat Tappet Camshaft Specs:
- For 383-440 cubic inch Big Block Chrysler engines from 1959-1980
- Stock (O.E.) valve springs can NOT be used.
- Single Bolt
- Basic RPM Range: 2200 to 6100
- Valve Lift Intake: .497
- Valve Lift Exhaust: .483
- Advertised Intake Duration: 287
- Advertised Exhaust Duration: 304
- 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 Hydraulic Flat Tappet camshaft for high performance on the street and drag strip.
Comp Cams –The Absolute Leader In Valve Train Technology!
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