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Technical Articles for Part Number HRS-118081-09
Howards Cams Big Daddy Rattler Camshafts 118081-09
Part Number: HRS-118081-09
Howards Cams Big Daddy Rattler Camshafts
Camshaft, Big Daddy Rattler, Hydraulic Flat Tappet, Advertised Duration 297 int./305 exh., Lift 0.507 / 0.495, Chevy, Small Block, Each
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Overview
Brand:
Manufacturer's Part Number:
118081-09
Part Type:
Product Line:
Summit Racing Part Number:
HRS-118081-09
UPC:
840793133017
Cam Style:
Hydraulic flat tappet
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
Rough idle, pro street or street/strip, needs 9.5:1 compression and 2800+ stall converter
Basic Operating RPM Range:
2,400-6,200
Intake Duration at 050 inch Lift:
243
Exhaust Duration at 050 inch Lift:
251
Advertised Intake Duration:
297
Advertised Exhaust Duration:
305
Advertised Duration:
297 int./305 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.507 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.495 in.
Valve Lift with Factory Rocker Arm Ratio:
0.507 int./0.495 exh.
Lobe Separation (degrees):
109
Camshaft Gear Attachment:
3-bolt
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Not for use with stock valve springs.
Howards Cams Big Daddy Rattler Camshafts
Howards Cams Big Daddy Rattler camshafts are street performance cams designed to give a nice aggressive-sounding idle without sacrificing throttle response and horsepower gains. Big Daddy camshafts are top dog in the Rattler lineup, and as such they offer a rough idle, and are best used in Pro Street or street/strip applications. Compression needs to be at least 9.5:1, the torque converter needs to stall 2,800 rpm or higher, and a performance intake manifold, steeper gears, and free-flowing exhaust are required to take advantage of the camshaft's capabilities.
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Some parts are not legal for use in California or other states with similar laws / regulations
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