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Technical Articles for Part Number HRS-257611-10
Howards Cams American Muscle Hydraulic Flat Tappet Camshafts 257611-10
Part Number: HRS-257611-10
Howards Cams American Muscle Hydraulic Flat Tappet Camshafts
Camshaft, Hydraulic Flat Tappet, Advertised Duration 256/256, Lift .438/.438, Ford, 352-428 FE, Each
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Overview
Brand:
Manufacturer's Part Number:
257611-10
Part Type:
Product Line:
Summit Racing Part Number:
HRS-257611-10
UPC:
840793112449
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street
Camshaft Manufacturers Description:
Near duplicate of the Ford 345 hp/428 cam, Ford #C6AZ-6250-A.
Basic Operating RPM Range:
1,000-4,400
Intake Duration at 050 inch Lift:
200
Exhaust Duration at 050 inch Lift:
200
Duration at 050 inch Lift:
200 int./200 exh.
Advertised Intake Duration:
256
Advertised Exhaust Duration:
256
Advertised Duration:
256 int./256 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.438 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.438 in.
Valve Lift with Factory Rocker Arm Ratio:
0.438 int./0.438 exh.
Lobe Separation (degrees):
110
Camshaft Gear Attachment:
1-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams American Muscle Hydraulic Flat Tappet Camshafts
Howards Cams American Muscle hydraulic flat tappet camshafts feature a design that replicates some of the most iconic OE camshaft-grinds from the '60s and early '70s. Howards took these fantastic grinds and made slight changes to the ramp speeds and minor duration changes for better reliability and horsepower without affecting the throttle response and the original-style exhaust rumble. Howards Cams manufactures the American Muscle hydraulic flat tappet camshafts designed for your application on dedicated, high-precision cam grinding machines to strict tolerances.
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Some parts are not legal for use in California or other states with similar laws / regulations
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