Skip to product information
3-5/8" Big Bore Cylinder Set For Harley-Davidson Shovelhead 1966-1984
  • Cylinders are stock height 6-5/8"
  • For installation of 3-5/8" cylinders after spigot holes have been enlarged
  • 3-5/8" cylinders are drilled to use with 4-1/2" and 4-1/4" stroke
  • Order pistons and rings separately
  • These cylinders will require crankcase cylinder spigot holes to be bored out
  • The finished bore size should be 3.6270"

You may also like

Have a question about this product?

Send us a message and we'll get back to you as soon as possible.