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Technical Articles for Part Number HRS-728041-09
Howards Cams Rattler Camshafts
Camshaft, Hydraulic Flat Tappet, Rattler, Advertised Duration 289/297, Lift .488/.480, Chrysler, Big Block, Each
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Overview
Brand:
Manufacturer's Part Number:
728041-09
Part Type:
Product Line:
Summit Racing Part Number:
HRS-728041-09
UPC:
840793135059
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Lopey idle, Street or street/strip, Needs 9.0:1+ compression & 2500+ stall converter.
Basic Operating RPM Range:
2,000-6,000
Intake Duration at 050 inch Lift:
235
Exhaust Duration at 050 inch Lift:
243
Duration at 050 inch Lift:
235 int./243 exh.
Advertised Intake Duration:
289
Advertised Exhaust Duration:
297
Advertised Duration:
289 int./297 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.488 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.480 in.
Valve Lift with Factory Rocker Arm Ratio:
0.488 int./0.480 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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