550 cam chest kits for M8

Cam Chest Kits for 2017-Up Touring & 2018-Up Softail® Models

Buy all of the matched parts in one kit
and save $$$!

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
  • Show Chrome pushrod tubes

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:

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

Cams:

  • S&S 550 cam
  • 550 cam is a great Horsepower building cam on 114” and larger engines
  • Available in both gear drive and chain drive variations

  • S&S 540 cam NEW
  • Designed for increased torque in 124 and larger engines
  • 540 cam powerband further enhances massive torque output of our popular 124” and 128” Big Bore Kits
  • Available in both gear drive and chain drive versions

Valve Springs:

  • Included with 550 and greater lift Cam Chest kits
  • High Performance Conical Single Wire Spring
  • Includes: Springs, Top Collars, Keepers, Valve Seal/Bottom Collar
  • Work with cams up to .605” lift

Oil Cooled Models

CamPushrodsPart #
Chain Drive 540C NEWChrome310-1118
Gear Drive 540C NEWChrome310-1119
Chain Drive 550CChrome310-1082
Gear Drive 550CChrome310-1083

Water Cooled Models

CamPushrodsPart #
Chain Drive 540C NEWChrome310-1116
Gear Drive 540C NEWChrome310-1117
Chain Drive 550CChrome310-1080
Gear Drive 550CChrome310-1081

installed-cam-plate
DYNO-2017-FLHTK-540-cam-vs-stock-107 S&S 540 Cam was designed to enhance the torque delivery of big cubic inch M8 motors, summoning a big fat serving of tire shredding, instant accelerating torque while carrying plenty of horsepower through the rev range. 
DYNO-550-CAMS-IN-114 The S&S 550 Cam was designed with larger displacement engines in mind. It provides enough air to let that big engine breathe! Shown here in a 114" with S&S Power Tune Duals, Mk45 Mufflers & Stealth Air Cleaner