Howards Cams 410021-12 Pontiac Hydraulic Flat Tappet Camshaft

This Howards Cams 410021-12 Pontiac Hydraulic Flat Tappet Street Force 2 Camshaft fits 265-455 cubic inch Pontiac engines from 1955-1981. Howards designed this cam for street/strip use, and it features a good idle and throttle response. A 9.0:1+ compression ratio, a 4-barrel & good exhaust, and a 1900+ stall speed torque converter are highly recommended.

Howards Cams 410021-12 Pontiac Hydraulic Flat Tappet Street Force 2 Camshaft Specs:

• For Pontiac 265-455 engines from 1955-1981
• Basic RPM Range: 1500 to 5800
• Valve Lift Intake: .450
• Valve Lift Exhaust: .450
• Intake Duration: 267
• Exhaust Duration: 277
• Intake Duration at .050”: 213
• Exhaust Duration at .050”: 223
• Lobe Separation: 112
• Intake Centerline: 108
• Firing Order: 1-8-4-3-6-5-7-2
• Recommended Lifter Set: 91411 Performance
• Recommended Valve Springs: 98412
• Recommended Valve Spring, Retainer and Lock Kit: 98412-K11
• Made in the USA

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

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

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