550 cam chest kits for M8

Cam Chest Kits Without Cams

Get the proven performance of the S&S cam chest kit while maintaining the freedom to use any cam you like for your Twin Cam or M8 with this kit!

Oil Pump/Cam Plate

  • Precision machined from billet aluminum
  • Passage plugs removable for servicing
  • Independent scavenge sections for flywheel cavity and cam chest
  • Debris screens in both scavenge pickups
  • Magnet in cam chest side to help to stop debris from entering oil pump
  • 44% flow increase on supply side and 58% flow increase on scavenge
  • Pressure relief valve is adjustable with unit installed in engine

Pushrods:

  • Quickee Pushrods

Tappets:

  • S&S Precision Tappets
  • Hand assembled to exacting tolerances
  • Reduced valvetrain noise from start up to shut down
  • Close tolerances for low leak down rates
  • Fast pump up and superior high rpm performance

Tappet Cuffs (M8 Models):

  • Hard anodized black coating
  • Billet aluminum construction
  • Stronger than stock material eliminates distortion
  • Improve tappet stability in high lift and high rpm situations

Install the Oil Control Valve (310-1150) for Oil Cooled HD® M8 Models to make your setup complete 


installed-cam-plate Early Cam Chest

Chain Drive Cam Chest Kits Without Cams For HD® M8 and Twin Cam Models

Oil or Water Cooled and Models PushrodsPart #
Oil Cooled 2017-up M8 ModelsBlack310-1262
Oil Cooled 2017-up M8 ModelsChrome310-1263
Water Cooled 2017-up M8 ModelsBlack310-1264
Water Cooled 2017-up M8 ModelsChrome310-1265
1999-2006 bt (except 2006 Dyna)Black310-1270
1999-2006 bt (except 2006 Dyna)Chrome310-1271
2006 Dyna, 2007-up btBlack310-1272
2006 Dyna, 2007-up btChrome310-1273

Gear Drive Cam Chest Kits Without Cams For HD® M8 and Twin Cam Models

Oil or Water Cooled and Models PushrodsPart #
Oil Cooled 2017-up M8 ModelsBlack310-1258
Oil Cooled 2017-up M8 ModelsChrome310-1259
Water Cooled 2017-up M8 ModelsBlack310-1260
Water Cooled 2017-up M8 ModelsChrome310-1261
1999-2006 bt (except 2006 Dyna)Black310-1266
1999-2006 bt (except 2006 Dyna)Chrome310-1267
2006 Dyna, 2007-up btBlack310-1268
2006 Dyna, 2007-up btChrome310-1269

310-1266