Rocket 514

99-06 Twin Cam (except 06 Dyna) - w/o Easy Start (#4-4007)

07-17 Twin Cam & 06 Dyna Models - w/o Easy Start (#4-4006)


  •  Cruising hi-torque bolt-in cams

  • Very easy on valve train parts
  • Incredible low rpm pulling power recommended for heavier bikes with stock compression ratio or up to 9.5:1
  • Best power with free-flow air cleaner and performance exhaust
  • Accepts stock valve springs
  • Peak performance 1500 to 5000 rpm

Rocket 554

99-06 Twin Cam (except 06 Dyna) - w/o Easy Start (#4-4008)


  • Powerful cruising bolt-in cams

  • Recommended engine sizes 88" to 107" above average mid-range passing power
  • Stock compression ratio or up to 10:1
  • Best power with free-flow air cleaner and performance exhaust
  • Accepts stock valve springs
  • Peak performance at 1500 to 5800 rpm

Rocket 574

07-17 Twin Cam and 06 Dyna Models - w/o Easy Start (#4-4003)
07-17 Twin Cam and 06 Dyna Models - w/ Easy Start (#4-4000)

  • Powerful street/cruising bolt-in cams

  • Above average mid-range power, works great with stock compression ratio or up to 10:1
  • Best power with free-flow air cleaner and performance exhaust
  • Accepts stock valve springs
  • Peak performance at 1500 to 5800 rpm

Rocket 584

99-06 Twin Cam (except 06 Dyna) - w/o Easy Start (#4-4009)
99-06 Twin Cam (except 06 Dyna) - w/ Easy Start (#4-4010)
07-17 Twin Cam and 06 Dyna Models - w/o Easy Start (#4-4004)
07-17 Twin Cam and 06 Dyna Models - w/ Easy Start (#4-4001)

  • Hot high-lift cams for upgraded engines of 103 ci. up to 110 ci.

  • For use with ported heads and a minimum 10:1 compression ratio

  • Delivers constant power while reducing detonation

  • Best power with free-flow air cleaner and performance exhaust

  • Accepts stock valve springs

  • Peak performance at 2000 to 6000 rpm