Feuling, 521 camshaft with Reaper M8 chain drive

Intake valve lift: .518", exhaust valve lift: .521".
- Intake open/close: 17/34 - Exhaust open/close: 51/11.5 - Intake/exhaust duration: 231/243 - Intake/exhaust valve lift: .518"/.521" - Valve lift at TDC: .162"/.125" - Cam centres at TDC intake/exhaust: 98.5/110 - Overlap: 28.5.
For 114"+ engines with high compression ratio. Requires high lift springs. RPM range: 2,250-6,250.
Requires high-lift springs. More aggressive version of the 508 for higher power at high RPM. Intense sound and aggressive pull for 114+ inch engines with higher compression ratio. Works with the stock throttle body, but a larger bore produces higher power peaks. Compatible with stock heads, but works very well with ported heads. Reinforced one-piece pushrods are recommended. Free-flowing slip-on mufflers / exhaust and air filter are recommended for best results.
Note: Requires high lift springs on stock cylinder heads.
Note: Compatible with SE cylinder heads, as they come equipped as standard with high-lift springs.
Note: Camshaft specifications measured in the engine with the tappet at 0.050 using the standard 1.61 rocker arm ratio.


Specifications


Brand
Feuling


Application
18-26 Softail; 17-26 FLT/Touring (excl. 23-26 VVT); 17-26 Trikes


Material
Steel


Packaging weight
0.868 kg


HS Code
84831021


Motorcycle family
SOFTAIL, TOURING


Original name
Feuling, Reaper M8 chain drive 521 Camshaft