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Howards Roller, Mechanical Roller Camshaft, Ford FE 352-428 |
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Howards Cams Mechanical Roller Camshaft
All Howards mechanical roller cams are ground on the billet still cores in house at Howards Cams. Mechanical roller cams are designed and mainly used in full competition applications. Real race conditions are extremely punishing to the valvetrain and the camshaft. So why would you use a cast core? No matter how good the heat-treatment, a cast care (SADI) will not provide the performance or durability of an American steel billet cam. Why are some cam companies using cast (SADI) cores? Lower cost, which equals higher profits. Howards Cams will not skimp on materials just for higher profits. Extreme conditions require better materials, better technology and better design. Better cam.... Great price! Made in the USA!
Part Type: Camshaft
Application: Ford FE 352-428 1963-77
Ignition Firing Order: (1-5-4-2-6-3-7-8)
Cam Style: Mechanical Roller Camshaft
Basic RPM Range: 3600-7200
Manufacturers Description: Rough idle, bracket E.T. good mid-range horsepower, 12.0:1+CR, 3800+ stall.
Intake Duration @ .050": 259
Exhaust Duration @ .050": 263
Advertised Intake Duration (@ .050"): 291
Advertised Exhaust Duration (@ .050"): 295
Intake Valve Lift with OE Rocker Ratio (1.75): .648"
Exhaust Valve Lift with OE Rocker Ratio (1.75): .648"
Intake Lobe Lift: .370"
Exhaust Lobe Lift: .370"
Intake Valve Lift with 1.70 Rocker Ratio: .629"
Intake Valve Lift with 1.80 Rocker Ratio: .666"
Exhaust Valve Lift with 1.70 Rocker Ratio: .629"
Exhaust Valve Lift with 1.80 Rocker Ratio: .666
Lobe Separation Angle: 108 Degrees
Intake Centerline: 104 Degrees
Small Base Circle: No
Lifters Included: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: .022/.022
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 252243-08
Weight: 14.0 lbs.
Warranty: Race Application, No warranty expressed or implied.
Quantity: Sold as Each
Note: Stock (O.E.) valve springs cannot be used.
Note: Requires upgraded distributor gear.
Note: Requires adjustable valvetrain.
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