Howards Cams American Muscle™ Hydraulic Flat Tappet Camshaft & Lifter Set
All Howards™ cams are ground at Howards Cams™, not re-boxed like some cam companies. All Howards™ cams use the highest-grade race quality cores available. All hydraulic and mechanical flat tappet camshafts are 100% Rockwell checked and Parkerized to ensure the highest quality control standards available anywhere. Howards™ cams are manufactured on dedicated high precision cam grinding machines. Most Howards™ cams are packaged and shipped in our unique, hard, high impact plastic reusable cases. This ensures that the high quality camshaft that went into the case comes out in the same condition, when delivered, as when it was packed.
Manufactured on Dedicated High Precision Machines
Held to Strict Tolerances
High grade quality cores
Rockwell Tested & Parkerized Ensuring the Highest Quality
Part Type: Camshaft & Lifter Set
Application: Ford FE 352-428 1963-1977
Ignition Firing Order: OE (1-5-4-2-6-3-7-8)
Cam Style: Hydraulic Flat Tappet
Basic RPM Range: 800-4000
Manufacturers Description: American Muscle™, Near duplicate of the Ford 300HP/390 cam (FMC #C0AZ-6250-A)
Intake Duration @ .050": 186
Exhaust Duration @ .050": 186
Advertised Intake Duration (@ .006"): 270
Advertised Exhaust Duration (@ .006"): 270
Intake Valve Lift with OE Rocker Ratio (1.75): .406"
Exhaust Valve Lift with OE Rocker Ratio (1.75): .406"
Intake Lobe Lift: .232"
Exhaust Lobe Lift: .232"
Intake Valve Lift with 1.70 Rocker Ratio: .394"
Intake Valve Lift with 1.80 Rocker Ratio: .418"
Exhaust Valve Lift with 1.70 Rocker Ratio: .394"
Exhaust Valve Lift with 1.80 Rocker Ratio: .418"
Lobe Separation Angle: 110 Degrees
Intake Centerline: 108 Degrees
Lifters Included: Yes, 91251
Small Base Circle: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus ˝ Turn
Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: CL257951-10
Weight: 10.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each
Note: Oil with ZDDP or ZDDP Additive Required.
Note: Stock (O.E) valve springs cannot be used.
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