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Technical Articles for Part Number HRS-678045-09
Howards Cams Rattler Retrofit Hydraulic Roller Camshafts 678045-09
Part Number: HRS-678045-09
Howards Cams Rattler Retrofit Hydraulic Roller Camshafts
Cam, Holden V-8, PFI, Hyd Roller
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Estimated Ship Date from Ohio: Tomorrow Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
678045-09
Part Type:
Product Line:
Summit Racing Part Number:
HRS-678045-09
UPC:
840793134885
Cam Style:
Hydraulic roller, Retro-fit
Camshaft Use:
Street
Camshaft Manufacturers Description:
Choppy idle. High performance street, stock converter OK, but best with 1800+ stall and gears.
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:
0.560 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.565 in.
Valve Lift with Factory Rocker Arm Ratio:
0.560 int./0.565 exh.
Lobe Separation (degrees):
109
Remanufactured:
No
Computer-Controlled Compatible:
No
Valve Springs Required:
Yes
Quantity:
Sold individually.
Notes:
Camshaft fits 1988-97 Holden 304-345 non roller camshaft engines.
Howards Cams Rattler Retrofit Hydraulic Roller Camshafts
Howards Cams Rattler Retrofit hydraulic roller camshafts have a small base, for use with OE-style hydraulic roller lifters and Spider. Designed for high performance street applications, the cams feature a choppy idle and operate best with 1800+ and gears. (Stock converter okay.) Order the Rattler model recommended for your year/make and engine.
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Some parts are not legal for use in California or other states with similar laws / regulations
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