Feuling Race Series Hydraulic Lifters - Harley Twin Cam & Milwaukee-Eight
About Feuling
Feuling Parts specializes in the internals that decide whether a big-inch V-twin lives or dies — oil pumps, cam plates, lifters, pushrods and camshafts. Its high-volume oil system components are a standard upgrade on high-mileage and high-output Twin Cam and Milwaukee-Eight engines.
Feuling Race Series hydraulic lifters are built for the demands of high-performance V-twin engines, especially those running aggressive cam profiles and increased valve spring pressures. These lifters ensure consistent oil delivery and valvetrain stability at elevated RPMs.
Why riders pick this
- Steel body for enhanced durability
- Slower bleed-down for high-lift cams
- Supports aggressive valve spring pressures
- Increases RPM capability and valvetrain stability
- Compatible with Feuling HP+ or Race Series oil pumps
- Dyno developed and track proven
When you're pushing the limits of your Harley-Davidson with a high-performance cam and stronger valve springs, stock lifters simply won't cut it. Feuling Race Series lifters feature robust steel body construction and a slower bleed-down rate, meticulously engineered to maintain crucial oil pressure to the top end. This design effectively reduces valve float, allowing your engine to rev higher and harder with increased stability and confidence on both the street and the strip.
Precision Valvetrain Control
- Durable steel body construction for extreme conditions
- Slower bleed-down rate supports high-lift cams
- Maintains oil delivery under aggressive valve spring pressures
- Increases RPM capability and valvetrain stability
- Compatible with Feuling HP+ or Race Series oil pumps
- Spin-Tron dyno-developed and track-proven
Built for Power
These Race Series lifters are a critical component for any serious performance build, ensuring your valvetrain can handle the increased demands of modified engines. Designed and manufactured in the U.S.A., they represent Feuling's commitment to quality and performance. For optimal results, pair these lifters with Feuling's HP+ or Race Series oil pumps to maximize oil flow and overall engine efficiency, unlocking the full potential of your V-twin.
Specifications
- Brand: Feuling
- Manufacturer Part #: 4017
- Length: 5 in
- Width: 6.2 in
- Height: 3.45 in
- Weight: 1.3 lbs
Common questions
What kind of valve spring pressures do these Race Series lifters support?
Feuling Race Series lifters are specifically engineered and recommended for engines running valve spring seat pressures higher than 185 lbs., making them ideal for performance applications.
Do I need a high-volume oil pump to run these lifters?
Yes, Feuling recommends pairing these Race Series lifters with a Feuling HP+ or Race Series oil pump, or an equivalent high-volume pump, to ensure optimal oil delivery and performance.
Will these lifters fit my specific Harley-Davidson model?
These lifters are designed for a broad range of Harley-Davidson Twin Cam and Milwaukee-Eight models. Please confirm fitment for your specific year and engine type using our Shop by Bike tool before ordering.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Feuling |
| TYPE | Engine |
| SKU | 811-04050 |
| WEIGHT | 1.3 lb |
