Comp Cams 23-600-9 BBM Thumpr Retro-Fit Hydraulic Roller Camshaft 283THR7

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.

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