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This S&S 450S cam is for 1978-1984 Harley-Davidson® big twin models. This cam is recommended for engines up to 88 inch with 8.5:1 compression ratio. This is a bolt in cam that provides good low and mid range torque solid or hydraulic.
Hydraulic tappets recommended. 1980-1981 engines require conversion to late style valve guides
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NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE ON ANY EPA POLLUTION CONTROLLED MOTOR VEHICLE.