Comp Cams 21-243-4 BBM Magnum Hydraulic Flat Tappet Camshaft 305H

This Comp Cams 21-243-4 BBM 305H Magnum Hydraulic Flat Tappet Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Comp designed this cam for pro street/strip use, and it features excellent low-end torque and a smooth idle. A 10.0:1 or higher compression ratio, 850 CFM carb, headers & good intake, 3.90 - 4.30 gear and a 3900+ stall speed torque converter are highly recommended.

Comp Cams 21-243-4 BBM 305H Magnum 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: 3500 to 6500
• Valve Lift Intake: .525
• Valve Lift Exhaust: .525
• Advertised Intake Duration: 305
• Advertised Exhaust Duration: 305
• Intake Duration at .050”: 253
• Exhaust Duration at .050”: 253
• Lobe Separation: 110
• 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.

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