Howards Cams 122142-12 BBC Mechanical Flat Tappet Camshaft

This Howards Cams 122142-12 BBC Mechanical Flat Tappet Camshaft fits 396-502 cubic inch Mark IV Big Block Chevy engines from 1965-1996. Howards designed this cam for bracket use, and it features strong mid-range torque & horsepower and has a fair idle. A 10.0:1+ compression ratio and a 3400+ stall speed torque converter are highly recommended.

Howards Cams 122142-12 BBC Mechanical Flat Tappet Camshaft Specs:

• For Big Block Chevy 396-502 engines from 1965-1996
• Basic RPM Range: 3000 to 6800
• Valve Lift Intake: .595
• Valve Lift Exhaust: .629
• Intake Duration: 285
• Exhaust Duration: 295
• Intake Duration at .050”: 250
• Exhaust Duration at .050”: 260
• Lobe Separation: 112
• Intake Centerline: 108
• Firing Order: 1-8-4-3-6-5-7-2
• Recommended Lifter Set: 91115 Performance
• Recommended Premium Lifter Set: 91118 Direct Lube Extreme Duty
• Recommended Valve Springs: 98636
• Recommended Valve Spring, Retainer and Lock Kit: 98636-K32
• Made in the USA

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

Howards Cams designed their Mechanical Flat Tappet camshafts for high performance on the drag strip.

Howards Flat Tappet Cams – From mild to wild, they are the ultimate in performance!