FEULING PARTS - CAM - 521 SERIES - CHAIN DRIVE - M8
$319.95
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Product Details
Cam - 521 Series - Chain Drive - M8
Highlights
- 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
Notes
- 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.
- Not for '23-'24 models with 121" VVT motors.
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| Application | Intake / Exhaust |
|---|---|
| Exhaust Close | 11.5° |
| Exhaust Duration | 243° |
| Exhaust Lift | 0.521" |
| Exhaust Lift at TDC | 0.125" |
| Exhaust Lobe Centerline | 110° |
| Exhaust Open | 51.5° |
| Grind | 521 Series |
| Intake Close | 34° |
| Intake Duration | 231° |
| Intake Lift | 0.518" |
| Intake Lift at TDC | 0.162" |
| Intake Lobe Centerline | 98.5° |
| Intake Open | 17° |
| Model | Reaper |
| Product Name | Cam |
| Riding Style | Street |
| Type | Chain |
| Units | Each |
Why KleenMoto
Premium Brand Partners
Performance brands we stand behind.
Curated For Harley Builds
Platform-specific parts that make sense.
Parts We'd Run Ourselves
Quality standards we actually believe in.
Trusted Checkout
Safe and easy shopping.