Race Series Oil System Pack / Early Twin Cam

The Feuling Race Series Oil System Pack bundles the oiling components needed to finish a '99-'06 Twin Cam engine build.

This is a component pack rather than a complete camchest, aimed at a builder who already has the cams and needs the oiling side to match. It combines everything required to finish the engine's oiling system in one part number, which removes the guesswork of assembling those pieces individually and hoping they agree.

What the Oil System Pack Delivers

The pack increases oil pressure, oil volume, engine oil flow and return oil scavenging, which together eliminate wet sumping and the oily air cleaner that comes with it. Feuling's test results show 25 to 35 degrees cooler running. A bearing retainer plate and hardware are included.

Choosing your option

Two things decide the variant. Drive matches how your engine turns the cams, and Lifters is the performance choice between full and short travel.

• Gear Drive, Short-Travel and Gear Drive, Full-Travel for gear driven cams
• Chain Drive, Short-Travel for the factory chain drive with original mechanical spring tensioners
• Chain Drive Conversion, Short-Travel uses a conversion camplate that upgrades the engine to the '07-'17 hydraulic tensioner system

Oil System Pack Specifications

• Fits '99-'05 Dyna and all other '99-'06 Harley-Davidson Twin Cams
• Increases oil pressure, volume, flow and return scavenging
• Eliminates wet sumping and oily air cleaners
• 25 to 35 degrees cooler running in Feuling testing
• Includes bearing retainer plate and hardware

Works With

Each option pairs with a specific Feuling camplate, all of which are on the High Flow Cam Plate product. The Gear Drive options use camplate 8000, Chain Drive uses 8010, and Chain Drive Conversion uses 8011. The kit is unusable with the wrong camplate, so check this before ordering.

The Chain Drive Conversion option uses the original '99-'06 style cam bearing bores and takes press-in bearings. See the Inner Cam Bearings, '99-'06 TC option.

Running a chain drive system with a gear drive pack? The Chain Drive Conversion Kit supplies the sprockets, chains and spacers.

⚠ VERIFY your model year and confirm the remaining components of your build before ordering, since this is a completion pack rather than a full camchest kit.