Howards Cams 121153-10 BBC Solid Roller Camshaft

This Howards Cams 121153-10 BBC Steel Billet Solid Roller Camshaft fits 396-502 cubic inch Mark IV Big Block Chevy engines from 1965-1996. Howards designed this camshaft for street/strip use, and it features a rough idle and good mid-range horsepower. A 11.0:1 or higher compression ratio and a 3000+ stall speed torque converter is highly recommended.

Howards Cams 121153-10 BBC Steel Billet Solid Roller Camshaft Specs:

• For Big Block Chevy 396-502 engines from 1965-1996
• Requires Thrust Button
• Requires upgraded distributor gear/fuel pump pushrod
• Basic RPM Range: 3000 to 7000
• Valve Lift Intake: .663
• Valve Lift Exhaust: .680
• Intake Duration: 281
• Exhaust Duration: 287
• Intake Duration at .050”: 249
• Exhaust Duration at .050”: 255
• Lobe Separation: 110
• Intake Centerline: 106
• Firing Order: 1-8-4-3-6-5-7-2
• Recommended Lifter Set: 91158 SportMax Direct Lube
• Recommended Premium Lifter Set: 91135 RaceMax
• Recommended Valve Springs: 98844
• Made in the USA

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

Howards Cams designed this hydraulic roller camshaft for performance on the street and drag strip.

Howards Cams - For the ultimate in performance!