HP+ Chain Drive Conversion Kits / Early Twin Cam

The Feuling HP+ Chain Drive Conversion Kit converts a '99-'06 Twin Cam to hydraulic chain tensioners using the HP+ oiling package rather than Race Series.

No Shipping to California.

This is the same conversion as the Race Series kit and a different tier of hardware. HP+ uses a high volume oil pump and high flow billet cam plate, which delivers the temperature and pressure gains without the billet 7075 Race Series pump. For a street Twin Cam that needs the tensioner problem solved and a healthy oiling system, it is the sensible spend.

What the HP+ Conversion Kit Includes

Conversion camshafts update the early mechanical style tensioner system to the late style hydraulic chain drive. Around them sit a Feuling HP+ high volume oil pump, a high flow billet cam plate, REAPER series camshafts, HP+ hydraulic roller lifters and Timken bearings. Fast Install adjustable pushrods can be fitted without removing the top rocker covers, which saves hours on installation and on any future adjustment.

HP+ Chain Drive Conversion Specifications

• Fits '99-'06 Twin Cams except '06 Dyna
• Converts mechanical tensioners to late style hydraulic chain drive
• Cam options: 525, 543 or 574 REAPER series
• Pushrod options: quick install adjustable, or one piece
• Feuling HP+ high volume oil pump and high flow billet cam plate
• HP+ hydraulic roller lifters, Timken bearings
• 25 to 35 degrees cooler engine temperature
• 15 to 30 degrees cooler oil temperature
• 15 to 30 more psi of oil pressure
• Eliminates wet sumping, blowby and oily air cleaners
• Made in the USA

⚠️ VERIFY your model year and confirm your bike is not an '06 Dyna, which is excluded. Cam specifications are listed separately in the engine section.