Description
This Comp Cams 23-600-9 BBM Thumpr Retro-Fit Hydraulic Roller Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Comp designed this cam for high performance street/strip use, and it features excellent mid-range torque and a choppy/thumping idle. A 9.0:1 or higher compression ratio, 3.55 – 4.10 rear end gears and a 2300+ stall speed torque converter are highly recommended.
Comp Cams 23-600-9 BBM Thumpr Retro-Fit Hydraulic Roller Camshaft Specs:
- For 383-440 cubic inch Big Block Chrysler engines from 1959-1980
- Stock (O.E.) valve springs can NOT be used.
- Three Bolt
- Basic RPM Range: 1900 to 5600
- Valve Lift Intake: .513
- Valve Lift Exhaust: .498
- Advertised Intake Duration: 283
- Advertised Exhaust Duration: 303
- Intake Duration at .050”: 227
- Exhaust Duration at .050”: 241
- Lobe Separation: 107
- Intake Centerline: 102
- Firing Order: 1-8-4-3-6-5-7-2
- Made in the USA
Comp Cams designed this 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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