Aggressive pulling power with a “nasty” sound, the Reaper 521 grind will shine in 114” and larger cubic inch engines with added compression ratio
Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range
Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers
A high-flow exhaust system and air cleaner is highly recommended for optimal performance
Rpm range 2250-6250
Made in the USA
Note:
Not for '23-'24 models with 121" VVT motors.
Cam specs measured in the engine on the lifter @ 0.050 using a 1.61 rocker arm ratio.
Feuling recommends matching 521 cam with Race Series oiling system.
Requires high lift springs.
Heavy-duty one-piece pushrods are also highly recommended.
CALIFORNIA WARNING: 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.
At Lifestyle Cycles we want your experience with us to be that of pleasure and our service to be equalled by none. Buying parts and accessories for your bike should be quick, simple and easy! We are also riders and builders! We know that you may not be ready to install the parts and accessories right when you get them. With that in mind, we have a 60-day return policy, which means you have 60 days after receiving your item to request a return.
At Lifestyle Cycles we want your experience with us to be that of pleasure and our service to be equalled by non. Buying parts & accessories for your bike should be quick, simple & easy! We are also riders and builders. We know that you want your parts & accessories as quickly as possible.
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