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Technical Articles for Part Number HRS-720031-12
Howards Cams Street Force 2 Hydraulic Flat Tappet Camshafts 720031-12
Part Number: HRS-720031-12
Howards Cams Street Force 2 Hydraulic Flat Tappet Camshafts
Camshaft, Hydraulic Flat Tappet, Advertised Duration 269/277, Lift .446/.465, Chrysler, Big Block, Each
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Estimated Ship Date: Dec 31, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
720031-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-720031-12
UPC:
840793115327
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Good idle and throttle response. Needs 4-barrel and good exhaust.
Basic Operating RPM Range:
1,400-5,200
Intake Duration at 050 inch Lift:
215
Exhaust Duration at 050 inch Lift:
223
Duration at 050 inch Lift:
215 int./223 exh.
Advertised Intake Duration:
269
Advertised Exhaust Duration:
277
Advertised Duration:
269 int./277 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.446 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.465 in.
Valve Lift with Factory Rocker Arm Ratio:
0.446 int./0.465 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 Street Force 2 Hydraulic Flat Tappet Camshafts
Howards Cams Street Force 2 hydraulic flat tappet camshafts are engineered for the street performance enthusiast. The specially designed grinds were created to provide a good idle and increased throttle response. This series of camshafts work best with an improved intake manifold, 4-barrel carburetor, free-flow exhaust, and 1,600 to 1,800 stall rpm torque converter. Street Force 2 models also feature 112 degree lobe separations to help maintain vacuum. The cams are available for a wide variety of year/make and engine applications. Street performance begins with Howards Cams!
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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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