Feuling 4051ST Race Series Over Sized Hydraulic Lifters 99-17 Harley Twin Cam
IN BRAND NEW CONDITION
PART # 4051ST
DRAG PART # 0928-0108
Fits: 1999-2017 Harley-Davidson Twin Cam, 2000-2019 Harley-Davidson Sportster, 2000-2009 Buell
FEULING® Oversized Dia. (0.843 - 0.8435) SHORT travel hydraulic lifters
New revolutionary design with 0.115 of total travel vs. a full travel lifter with 0.200. These lifters will increase RPM by decreasing valve float and valve-train harmonics while maintaining a quiet engine. The travel reduction reduces the amount of oil that is required to fill the inside of the lifter which reduces oil aeration in the lifter on steep, fast action high lift camshaft lobes. Feuling short travel lifters should be set with 0.065 - 0.070 of pre-load and with the normal engine growth from heat will put the operating lifter pre load at or around half travel.
Feuling SHORT travel lifters are designed to limit the amount of oil needed to fill the internals of the lifter which results in less oil needed compared to a full travel or other style short travel lifters. Our design drastically reduces aeration of the oil producing a fully filled lifter when the lifter rolls around to the front cam lobe ramp vs. having aerated oil and then the pushrod seat dropping when the lifter hits the front cam ramp after squeezing the aeration.
Better Performance!
Quieter running engine!
Made in USA!
Machined from a steel body and designed to exceed the needs of large lift camshafts and higher valve spring pressures with a slower bleed down rate. RACE SERIES® lifters maintain proper oil flow to the top end, increase engine RPM, valve-train stability, decreasing valve float promoting maximum valve lift.
Feuling® recommends Race Series® lifters for engines running higher than 185 Lbs. valve spring seat pressure. FEULING recommends the use of a high volume oil pump which will result in quieter, better performing lifters. Race Series® lifters are compatible with either FEULING® HP+® or Race Series® oil pumps and are designed for use with both street and strip engines. Spin-Tron dyno developed and track proven, Made in the USA.
Adjust FEULING SHORT TRAVEL lifters with 0.065 - 0.070 of pre load on the lifter.
• Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction
• Cold forged extra long piston, precision ground and fitted for controlled leak down and pump up
• High flow disc style quick reacting check valve for better reaction at higher RPM.
• Available in oversized diameters - Case Savers!
• Recommended for both strip and performance street engines
• Sold in sets of 4
• Made in the U.S.A.
*FEULING® RECOMMENDS PUMPING UP EACH LIFTER BY HAND PRIOR TO INSTALLATION, TO REMOVE ALL AIR AND PROVIDE A FULLY PUMPED UP LIFTER. USE OF A THIN WEIGHT OIL LIKE ATF IN A SQUIRT CAN WORKS WELL.
IN BRAND NEW CONDITION
PART # 4051ST
DRAG PART # 0928-0108
Fits: 1999-2017 Harley-Davidson Twin Cam, 2000-2019 Harley-Davidson Sportster, 2000-2009 Buell
FEULING® Oversized Dia. (0.843 - 0.8435) SHORT travel hydraulic lifters
New revolutionary design with 0.115 of total travel vs. a full travel lifter with 0.200. These lifters will increase RPM by decreasing valve float and valve-train harmonics while maintaining a quiet engine. The travel reduction reduces the amount of oil that is required to fill the inside of the lifter which reduces oil aeration in the lifter on steep, fast action high lift camshaft lobes. Feuling short travel lifters should be set with 0.065 - 0.070 of pre-load and with the normal engine growth from heat will put the operating lifter pre load at or around half travel.
Feuling SHORT travel lifters are designed to limit the amount of oil needed to fill the internals of the lifter which results in less oil needed compared to a full travel or other style short travel lifters. Our design drastically reduces aeration of the oil producing a fully filled lifter when the lifter rolls around to the front cam lobe ramp vs. having aerated oil and then the pushrod seat dropping when the lifter hits the front cam ramp after squeezing the aeration.
Better Performance!
Quieter running engine!
Made in USA!
Machined from a steel body and designed to exceed the needs of large lift camshafts and higher valve spring pressures with a slower bleed down rate. RACE SERIES® lifters maintain proper oil flow to the top end, increase engine RPM, valve-train stability, decreasing valve float promoting maximum valve lift.
Feuling® recommends Race Series® lifters for engines running higher than 185 Lbs. valve spring seat pressure. FEULING recommends the use of a high volume oil pump which will result in quieter, better performing lifters. Race Series® lifters are compatible with either FEULING® HP+® or Race Series® oil pumps and are designed for use with both street and strip engines. Spin-Tron dyno developed and track proven, Made in the USA.
Adjust FEULING SHORT TRAVEL lifters with 0.065 - 0.070 of pre load on the lifter.
• Precision ground needle roller bearing with high chromium steel axle for long life and minimal friction
• Cold forged extra long piston, precision ground and fitted for controlled leak down and pump up
• High flow disc style quick reacting check valve for better reaction at higher RPM.
• Available in oversized diameters - Case Savers!
• Recommended for both strip and performance street engines
• Sold in sets of 4
• Made in the U.S.A.
*FEULING® RECOMMENDS PUMPING UP EACH LIFTER BY HAND PRIOR TO INSTALLATION, TO REMOVE ALL AIR AND PROVIDE A FULLY PUMPED UP LIFTER. USE OF A THIN WEIGHT OIL LIKE ATF IN A SQUIRT CAN WORKS WELL.
| Brand | Feuling |
|---|---|
| Drag Part # | 0928-0108 |
| Manufacturer Part No. | 4051ST |
| Fitment | 1999-2017 Harley-Davidson Twin Cam, 2000-2019 Harley-Davidson Sportster, 2000-2009 Buell |
| Additional Notes | BI |
| Ships Within: | 24 Hrs |
1999-2017 Harley-Davidson Twin Cam, 2000-2019 Harley-Davidson Sportster, 2000-2009 Buell
Manufacture's Warranty
BI
