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Technical Articles for Part Number HRS-220255-12
Howards Cams Retrofit Hydraulic Roller Camshafts 220255-12
Part Number: HRS-220255-12
Howards Cams Retrofit Hydraulic Roller Camshafts
Camshaft, Hydraulic Roller Tappet, Advertised Duration 284/288, Lift .544/.565, Ford, 351W, Each
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Estimated Ship Date: Oct 22, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
220255-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-220255-12
UPC:
840793110025
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Fair idle, performance usage. Great midrange torque and horsepower.
Basic Operating RPM Range:
2,700-6,800
Intake Duration at 050 inch Lift:
231
Exhaust Duration at 050 inch Lift:
235
Duration at 050 inch Lift:
231 int./235 exh.
Advertised Intake Duration:
284
Advertised Exhaust Duration:
288
Advertised Duration:
284 int./288 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.544 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.565 in.
Valve Lift with Factory Rocker Arm Ratio:
0.544 int./0.565 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 Retrofit Hydraulic Roller Camshafts
Howards Cams retrofit hydraulic roller camshafts offer more lift and more power for less money. These street performance grinds are perfect for those wanting to upgrade to hydraulic roller cams. Manufactured using the highest grade race-quality cores, Howards precision-grinds their cams to provide the quality and performance that you want at a reasonable price. Overhaul your valvetrain for mild to wild street performance with Howards Cams retrofit hydraulic roller camshafts. Hundreds of models are available for a wide range of vehicles from the 1950s and up.
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Some parts are not legal for use in California or other states with similar laws / regulations
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