If you are looking for the option to build up your own 98" big bore kit, look no further. The Fuel Moto Extreme Duty cylinders with heavy Ductile iron sleeve are available in a 98 CI, 3.937" bore and does not require boring. Includes piston kit, new Extreme Duty Cylinders, MLS head gaskets, and OEM base O-rings.
These custom forged pistons from CP Carillo are available in a 10.0:1 compression ratio. The ring end gap is already set and are simply ready to be installed.
The cylinders are a core component for reliability for any big bore kit and we offer the very best with the Extreme Duty Cylinders. These cylinders are designed for maximum durability and top level performance which feature a centrifugally cast ductile iron sleeve and are 100% made in the USA. You get to keep your OEM cylinders and the Extreme Duty Cylinders are used in their place with this kit.
Years of testing have driven us to select only the best components. We have already performed in house stress tests to find the best performing parts to ensure your build is reliable for years to come. Cometic multi layer steel head gaskets with Harley-Davidson OEM cylinder base o-rings will form the best seal.
You have done all of your research but maybe you still have a question. The technicians at Fuel Moto have the answers and would welcome your call. With every Fuel Moto big bore kit purchase we include unlimited technical support. Shoot us an email at info@fuelmotousa.com or give us a call at 920-423-3309 - we will work together to get you up and running.
