



521 Cam has 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. The stock throttle body produces an excellent powerband and use of a high flow throttle body will increase peak power numbers. A high flow exhaust system and air cleaner is highly recommended for optimal performance. Feuling® recommends matching this cam with our Race Series® oiling system.
Product Style | Item # | Store SKU | Manufacturer Product # | Availability |
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Product Style Feuling 521 Cam For Harley Milwaukee Eight 2017-2025 | Item # 10026712 | Store SKU | Manufacturer Product # 1346 | Availability In Stock: Ships within 24 hours |