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Fuel Moto M8 124" Big Bore Kit for 107" Engines

FMS-M8-124-4250-KIT
Availability: IN STOCK. Engine kits are assembled to order and generally ship within 48 hours
Pricing: $1,699.00

Qty:

Description

The Fuel Moto M8 124" big bore kit is a complete bolt on engine kit for stock engine cases that makes exceptional horsepower and torque. It includes the absolute highest quality components, all of which have been extensively tested in house both on the dynamometer as well as in real world conditions to deliver top level performance. This kit works on 2017-2019 H-D Milwaukee-Eight 107" (4.375" stroke) air cooled & twin cooled engines and when combined with the appropriate performance modifications offers output in excess of 140+ horsepower. This kit works with stock or aftermarket cylinder heads, it requires larger throttle body, injectors, exhaust system, as well as other components that will support 140+Hp. Proper tuning is also necessary, Dynojet Power Vision & Target Tune is recommended, FM has excellent base maps available! 

The Fuel Moto M8 124" kit includes the following:

 

Custom Fuel Moto / CP Carillo Forged Pistons

Custom Fuel Moto / CP Carillo Forged Pistons

Custom proprietary forged pistons from CP Carillo 11.0:1 compression ratio. The ring end gap is already set and ready to be installed.

Fuel Moto Extreme Duty Cylinders

Extreme Duty cylinders

The Fuel Moto M8 124" big bore kit includes new Extreme Duty cylinders with high strength ductile iron sleeves, bore/hone finish work is done on OEM level machinery to exact tolerances. Cylinders are black with silver polished highlights. Made in Viola, WI USA

Wood Performance Knight Prowler Camshaft

Wood Performance Knight Prowler Camshaft

The camshaft is the workhorse of any big bore kit which is why every single Fuel Moto big bore kit has Wood Performance Knight Prowler camshaft inside. The Wood Performance WM8-408 has been built with this kit in mind and provides a strong power band offering early torque and high end horsepower alike (other options are available, call for details). The WM8-408 cam requires hi lift valve springs (Additional purchase required, not included with kit).

Wood Performance M8 Alpha Series Directional Lifters

Wood Performance Alpha Series Directional Lifters

We all want more power with a big bore kit but would never want to sacrifice reliability. The Wood Performance Alpha Series Directional Lifters are a key component which addresses a common concern with the stock lifters which are simply not designed for the increased performance of a big bore kit. We are also a huge advocate of new parts on new parts so with a brand new Wood Performance camshaft we also install the brand new lifters on each and every build we perform in house.

Fuel Moto Quick Install Adjustable Pushrods

Fuel Moto "EZ" Quick Install Adjustable Pushrods

The Fuel Moto quick install adjustable pushrods are the finest pushrods available. Chromoly design which is engineered for maximum strength and durability these pushrods install right inside of the stock pushrod tube covers. 

All Necessary Gaskets, O-Rings and Torrington Style Inner Cam Bearings

All Necessary Gaskets, O-Rings and a Torrington Style Inner Cam Bearing

No one wants to be in the middle of a build and find that they are missing a gasket or o-ring to complete their build. With the Fuel Moto big bore kits all the necessary gaskets, o-rings and inner cam bearing are included. We have already performed in house stress tests to find the best performing parts to ensure your build is reliable for years to come.

Unlimited Technical Support From Fuel Moto

Unlimited Technical Support From Fuel Moto

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.

Retail Price:

$1699.00 Complete kit

Professional turn key Installation:

$2899.00* at our location including the complete kit, break in & dyno tune on our state of the art dyno. (*does not include EFI tuning device, exhaust system, throttle body, injectors or other associated parts such as oil & filter)

Application List

Fitment for Fuel Moto M8 117" Big Bore Kit

Details

  • FMS-M8-124-4250-KIT
  • FMS-M8-124-4250-KIT
  • Fuel Moto
  • IN STOCK. Engine kits are assembled to order and generally ship within 48 hours
  • New

Shipping Information

  • Item Requires Shipping
  • 50.0 lbs.
  • W21.0000” x H14.0000” x L14.0000”
  • This item ships in its own box.