This Howards Cams 250981-10 Ford FE Hydraulic Flat Tappet Camshaft fits 352-428 cubic inch Big Block engines from 1963-1977. It is great for street/strip use, and it runs strong 3500 rpm & up with a rough idle. A 9.5:1+ compression ratio, headers, and a 3400+ stall speed torque converter are highly recommended.

Howards Cams 250981-10 Ford FE Hydraulic Flat Tappet Camshaft Specs:

• For Big Block Ford FE 352-428 engines from 1963-1977
• Basic RPM Range: 3000 to 6400
• Valve Lift Intake: .548
• Valve Lift Exhaust: .548
• Intake Duration: 295
• Exhaust Duration: 295
• Intake Duration at .050”: 241
• Exhaust Duration at .050”: 241
• Lobe Separation: 110
• Intake Centerline: 106
• Requires adjustable valvetrain
• Firing Order: 1-5-4-2-6-3-7-8
• Recommended Lifter Set: 91251 Performance
• Recommended Valve Springs: 98511
• Recommended Valve Spring, Retainer and Lock Kit: 98511-K31
• Made in the USA

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

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

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