Howards Cams 720555-12 BBM Hydraulic Roller Cam

This Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft fits the 383-440 Big Block Chrysler from 1959-1980. Howards designed this cam for street/mild bracket racing, and it features good low to mid-range performance and a mild lopey idle. A 9.5:1+ compression ratio and a 2400+ stall speed torque converter are highly recommended.

Howards Cams 720555-12 BBM Retro-Fit Hydraulic Roller Camshaft Specs:

• For 383-440 cubic inch Big Block Chrysler engines from 1959-1980
• Basic RPM Range: 2000 to 6200
• Valve Lift Intake: .520
• Valve Lift Exhaust: .530
• Intake Duration: 282
• Exhaust Duration: 288
• Intake Duration at .050”: 229
• Exhaust Duration at .050”: 235
• Lobe Separation: 112
• Intake Centerline: 108
• Requires 3 bolt timing set
• Firing Order: 1-8-4-3-6-5-7-2
• Made in the USA

Notes: Stock (O.E.) valve springs can NOT be used.

Howards Cams designed this Hydraulic Roller camshaft for high performance on the street and drag strip.

Howards Hydraulic Roller Cams – From mild to wild, they are the ultimate in performance!