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Technical Articles for Part Number HRS-248025-09
Howards Cams Rattler Camshafts
Camshaft, Hydraulic Roller Tappet, Rattler, Advertised Duration 280/288, Lift .565/.565, Ford, 429, 460, Each
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Estimated Ship Date from Ohio: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
248025-09
Part Type:
Product Line:
Summit Racing Part Number:
HRS-248025-09
UPC:
840793134281
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Choppy idle, high performance street. Stock converter OK. Best with 1,800+ and gear upgrade.
Basic Operating RPM Range:
1,800-5,200
Intake Duration at 050 inch Lift:
227
Exhaust Duration at 050 inch Lift:
235
Duration at 050 inch Lift:
227 int./235 exh.
Advertised Intake Duration:
280
Advertised Exhaust Duration:
288
Advertised Duration:
280 int./288 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.565 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.565 in.
Valve Lift with Factory Rocker Arm Ratio:
0.565 int./0.565 exh.
Lobe Separation (degrees):
109
Camshaft Gear Attachment:
1-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Howards Cams Rattler Camshafts
Howards Cams Rattler camshafts build solid power and a classic sound while retaining drivability. They feature wider lobe centers and use a more aggressive ramp rate to help with air velocity. Although their design is for high-performance street use, they also work well with a stock torque converter. Howards Cams recommends using their Rattler camshafts with a converter stalling above 1,800 rpm and a set of steeper rear-end gears.
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Some parts are not legal for use in California or other states with similar laws / regulations
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