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Technical Articles for Part Number HRS-250031-12
Howards Cams Hydraulic Flat Tappet Camshafts
Camshaft, Hydraulic Flat Tappet, Advertised Duration 267/277, Lift .525/.525, Ford, 352-428 FE, Each
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Estimated Ship Date: Dec 30, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
250031-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-250031-12
UPC:
840793112197
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Good idle. Excellent street performance dual pattern cam.
Basic Operating RPM Range:
1,400-5,200
Intake Duration at 050 inch Lift:
213
Exhaust Duration at 050 inch Lift:
223
Duration at 050 inch Lift:
213 int./223 exh.
Advertised Intake Duration:
267
Advertised Exhaust Duration:
277
Advertised Duration:
267 int./277 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.525 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.525 in.
Valve Lift with Factory Rocker Arm Ratio:
0.525 int./0.525 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
1-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams Hydraulic Flat Tappet Camshafts
Howards Cams offers their hydraulic flat tappet camshafts in a variety of configurations and performance levels for street, strip, and oval track purposes. All their flat tappet cams meet strict requirements to ensure the highest quality (and many get packaged and shipped in their unique, reusable, high-impact-plastic cases to ensure the quality reaches your doorstep.) Get the profile you want—from mild and smooth to loud and rough—with the hydraulic flat tappet camshafts from Howards Cams designed for your application.
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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