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Technical Articles for Part Number HRS-110525-12
Howards Cams Retrofit Hydraulic Roller Camshafts 110525-12
Part Number: HRS-110525-12
Howards Cams Retrofit Hydraulic Roller Camshafts
Camshaft, Retrofit, Hydraulic Roller Tappet, Advertised Duration 280/286, Lift .560/.560, Chevy, Small Block
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Estimated Ship Date: Oct 22, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
110525-12
Part Type:
Product Line:
Summit Racing Part Number:
HRS-110525-12
UPC:
840793100767
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Good idle and vacuum, good all-around midrange performance. 2,500+ stall.
Basic Operating RPM Range:
2,300-6,200
Intake Duration at 050 inch Lift:
227
Exhaust Duration at 050 inch Lift:
233
Duration at 050 inch Lift:
227 int./233 exh.
Advertised Intake Duration:
280
Advertised Exhaust Duration:
286
Advertised Duration:
280 int./286 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.560 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.560 in.
Valve Lift with Factory Rocker Arm Ratio:
0.560 int./0.560 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Retrofit roller cam for engines that did not originally come with a roller cam.
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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