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Technical Articles for Part Number HRS-210021-12
Howards Cams Street Force 1 Hydraulic Flat Tappet Camshafts 210021-12
Part Number: HRS-210021-12
Howards Cams Street Force 1 Hydraulic Flat Tappet Camshafts
Camshaft, Street Force 1, Hydraulic Flat Tappet, Advertised Duration 259/267, Lift .448/.480, Ford, 221, 255, 260, 289, 302
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Overview
Brand:
Manufacturer's Part Number:
210021-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-210021-12
UPC:
840793109180
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Great low and midrange. Smooth idle. Good in pickups and RVs.
Basic Operating RPM Range:
1,000-4,500
Intake Duration at 050 inch Lift:
205
Exhaust Duration at 050 inch Lift:
213
Duration at 050 inch Lift:
205 int./213 exh.
Advertised Intake Duration:
259
Advertised Exhaust Duration:
267
Advertised Duration:
259 int./267 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.448 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.480 in.
Valve Lift with Factory Rocker Arm Ratio:
0.448 int./0.480 exh.
Lobe Separation (degrees):
112
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams Street Force 1 Hydraulic Flat Tappet Camshafts
Howards Cams Street Force 1 hydraulic flat tappet camshafts were designed for the street performance enthusiast. These camshafts feature true street performance with little or no added maintenance. The specially designed grinds were created to provide good idle, mild street performance, and strong low-end torque. Street Force 1 camshafts work best with a dual-plane intake manifold and dual exhaust. The camshafts also feature 112 degree lobe separations to help maintain vacuum. They're available for countless year/make and engine applications. For premier street performance, choose Howards Cams.
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Some parts are not legal for use in California or other states with similar laws / regulations
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