Description
This Howards Cams 122312-10 BBC Mechanical Flat Tappet Camshaft fits 396-502 cubic inch Mark IV Big Block Chevy engines from 1965-1996. Howards designed this cam for street/strip use, and it features increased mid-range torque & horsepower and can be used with nitrous. A 10.0:1+ compression ratio and a 3200+ stall speed torque converter are highly recommended.
Howards Cams 122312-10 BBC Mechanical Flat Tappet Camshaft Specs:
- For Big Block Chevy 396-502 engines from 1965-1996
- Basic RPM Range: 2800 to 6600
- Valve Lift Intake: .595
- Valve Lift Exhaust: .606
- Intake Duration: 285
- Exhaust Duration: 291
- Intake Duration at .050”: 250
- Exhaust Duration at .050”: 256
- Lobe Separation: 110
- Intake Centerline: 106
- 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 street and drag strip.
Howards Flat Tappet Cams – From mild to wild, they are the ultimate in performance!
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