Feuling Tech Tips – Oil Pump Cover O-Ring
![Feuling Tech Tips – Oil Pump Cover O-Ring](https://rolliesspeedshop.com/wp-content/uploads/2021/09/Feuling-Tech-Bulletin-Oil-Pump.jpg)
Due to the mass of call volume & inquires with requests for the M-Eight oil pump back cover O-ring groove, we’ve added the groove. Although Feulings in house testing on healthy engines did not show a benefit. The O-ring may have potential benefits in certain circumstances such as engines with higher cylinder leak down, poor […]
Zipper’s Red Shift 468 Bolt-in Cam for 2017up M8’s
![Zipper’s Red Shift 468 Bolt-in Cam for 2017up M8’s](https://rolliesspeedshop.com/wp-content/uploads/2020/06/Zippers-Red-Shift-468-Cam.jpg)
The Harley-Davidson® Milwaukee-Eight® with it’s four valve head platform needs to be treated differently from the 1999-2016 two valve head twin cams. The stock M8 has a very different ratio of intake and exhaust flow. The Red Shift Cam 468 was specifically designed for the M8 to get the best performance out of it. A […]