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Description Our value priced Fuel Moto SP 124" big bore 10.75 compression piston & cylinder builder Kit takes your 107" M8 engine to 124" with no engine case boring required, it was developed to work with a wide range of M8 cams and components. This lower compression kit works especially well with shorter lift/duration bolt in cams such as the Wood WM8-22x, 22XE, & 222, Redshift RS-468, S&S 475, CR 460 & 480 and other similar grinds. Includes custom piston kit, new cylinders, and Cometic MLS heads & base gaskets. This kit works on 2017-later Milwaukee-Eight 107" engines (air cooled & twin cooled) Touring and Softail. Works with stock or ported heads.  The Fuel Moto SP 124" 10.75 kit includes the following:  Forged pistons  CP Carrillo Forged pistons 10.75:1 compression ratio, manufactured in USA. The ring end gap is already set    New cylinders The Fuel Moto M8 124" 10.75 big bore kit includes new cylinders. Note the cylinders in this kit are globally sourced, quality meets or exceeds the OEM cylinders (click here for our 124 kit with USA made cylinders) Cylinders are black with silver polished highlights. Cometic MLS head & base gaskets are included.   What else do I need? You will need an exhaust system, air cleaner, EFI tuner, and clutch spring and/or lockup to support the appropriate power level of this kit. Milwaukee-8 engines also require larger fuel injectors. Fuel Moto engine kits require installation by a qualified mechanic with experience in engine building and the appropriate tools to check all clearances & tolerances during engine assembly following the OEM service manual procedures and any additional instructions provided. You will need a OEM service manual and some specialty tools such as a inner cam bearing removal/install tool. These engine kits also require comprehensive tuning, we will supply the appropriate FM base tune. Check our FM University site for helpful tips and info.  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.

Description The Fuel Moto M8 124" Outlaw piston & cylinder kits takes your 107" M8 engine to 124" with no engine case boring required. Includes special application, high compression pistons with choice of 11.5:1 or 12.0:1 compression. Pistons were designed for Fuel Moto by CP Carrillo race department with optimized skirt and barrel profile, and feature Calico premium skirt coating. Kit also includes new Extreme Duty cylinders (made in USA), and Cometic MLS heads & base gaskets. This kit works on 2017-later Milwaukee-Eight 107" engines (air cooled & twin cooled) Touring and Softail. Works with stock or ported heads.   The Fuel Moto M8 124" Outlaw kit includes the following:  Custom CP Carrillo Pistons Special application, custom CP Carrillo pistons, choice of 11.5:1 or 12.0:1 compression ratio with optimized skirt and barrel profile, Calico premium skirt coating. These FM custom pistons use CP's premium X-Forging for reduced friction and maximum durability. Ring end gap is already set and are ready to be installed.   New Extreme Duty cylinders The Fuel Moto M8 124" Outlaw 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 available in black with silver polished highlights or CVO granite finish with polished highlights. Manufactured by S&S Cycle in Viola, WI USA. Cometic MLS head & base gaskets are included.    What else do I need? This kit is designed for big horsepower. You will need an exhaust system, air cleaner, EFI tuner, and clutch spring and/or lockup to support the appropriate power level of this kit. Milwaukee-8 engines also require larger fuel injectors. Fuel Moto engine kits require installation by a qualified mechanic with experience in engine building and the appropriate tools to check all clearances & tolerances during engine assembly following the OEM service manual procedures and any additional instructions provided. You will need a OEM service manual and some specialty tools such as a inner cam bearing removal/install tool. These engine kits also require comprehensive tuning, we will supply the appropriate FM base tune. Check our FM University site for helpful tips and info. 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.  

Description The Fuel Moto M8 128" big bore 10.75 compression piston & cylinder Builder Kit takes your 114" or 117" 4.5" stroke M8 engine to 128" with no engine case boring required, it was developed to work with a wide range of M8 cams and components. This lower compression kit works especially well with shorter lift/duration bolt in cams such as the Wood WM8-22X, 22XE, 222, Redshift RS-468, S&S 475, CR 460, CR 480 and other similar grinds. Includes custom CP Carrillo dished piston kit, new Extreme Duty cylinders, and Cometic MLS heads & base gaskets. This kit works on 2017-later Milwaukee-Eight 114" & 117" 4.5" stroke engines (air cooled & twin cooled) Touring and Softail. Works with stock, ported, or SE cylinder heads.  The Fuel Moto M8 128" 10.75 kit includes the following:  CP Carrillo Forged Pistons proprietary FM custom CP Carrillo dished pistons 10.75:1 compression ratio, premium X-forging with fully developed skirt profile. The ring end gap is already set and are simply ready to be installed.   New Extreme Duty cylinders The Fuel Moto M8 124" 10.75 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 available in black with silver polished highlights or CVO granite with polished highlights. Manufactured by S&S Cycle in Viola, WI USA. MLS head & base gaskets are included.    What else do I need? You will need an exhaust system, air cleaner, EFI tuner, and clutch spring and/or lockup to support the appropriate power level of this kit. Milwaukee-8 engines also require larger fuel injectors. Fuel Moto engine kits require installation by a qualified mechanic with experience in engine building and the appropriate tools to check all clearances & tolerances during engine assembly following the OEM service manual procedures and any additional instructions provided. You will need a OEM service manual and some specialty tools such as a inner cam bearing removal/install tool. These engine kits also require comprehensive tuning, we will supply the appropriate FM base tune. Check our FM University site for helpful tips and info. 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.