Solid Lifters - Race Series® - +0.8435" to 0.844" Oversize - Twin Cam | XL | Buell | M8

• Designed for engines with radical valve spring pressures and large lift camshaft
• Optimize valvetrain stability at high rpm, decrease valve float, maintain maximum valve lift, increase horsepower and torque output
• CNC machined and precison ground with 0.700" diameter rollers maintaining proper and critical oil flow to top end with metered oiling
• Utilizes standard pushrod seat height
• Made in the USA
• Feuling recommends the use of Race Series® adjustable pushrods or comparable heavy duty adjustable pushrods.
• For best results Feuling recommends the use of a high volume oil pump.

Manufacturer Part Number: 4057