Dorm Essential Howards Cams 411391-08 Pontiac Hydraulic Flat Tappet Camshaft Pro Version [HA1Ywzn8]

This Dorm Essential Howards Cams 411391-08 Pontiac Hydraulic Flat Tappet Camshaft Pro Version [HA1Ywzn8] fits 265-455 cubic inch Pontiac engines from 1955-1981. Howards designed this cam for hot street/bracket racing, and it features nice upper mid-range & top end and a rough idle. A 9.0:1+ compression ratio, lower rear end gears and a 3400+ stall speed torque converter are highly recommended.

Dorm Essential Howards Cams 411391-08 Pontiac Hydraulic Flat Tappet Camshaft Pro Version [HA1Ywzn8] Specs:

• For Pontiac 265-455 engines from 1955-1981
• Basic RPM Range: 3000 to 6800
• Valve Lift Intake: .503
• Valve Lift Exhaust: .510
• Intake Duration: 294
• Exhaust Duration: 301
• Intake Duration at .050”: 241
• Exhaust Duration at .050”: 247
• Lobe Separation: 108
• Intake Centerline: 104
• 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!