Description
The CP Carrillo M1083A piston kit is a complete four piston forged set for Yamaha 1.8L FX SHO engines that are being built for serious performance with an 86.5mm oversize bore. This kit is aimed at full engine builds where all cylinders are upgraded at once, combining a larger bore with high compression characteristics for strong torque and rapid acceleration. The oversize bore increases displacement, helping the engine move more air and fuel and supporting higher overall power output.
As a forged CP Pistons set, the M1083A kit focuses on strength, consistency, and precise fitment. Each piston is carefully machined with robust ring lands, a carefully shaped crown, and stable skirts designed to run smoothly at high rpm and under elevated cylinder pressures. When matched with the correct rods, pins, and rings, this kit creates a powerful foundation for tuned and raced FX SHO platforms.
- Engine coverage Yamaha 1.8L FX SHO applications that require 86.5mm oversize pistons in all four cylinders.
- High performance design aimed at builds that demand quicker acceleration and stronger overall power.
- Includes a full set of four forged pistons for complete engine overhauls and new performance short block assemblies.
- Forged aluminum construction provides outstanding durability and fatigue resistance in demanding marine environments.
- Carefully engineered crown and ring groove geometry promote efficient combustion and reliable sealing at high boost.
- Ideal for riders and racers assembling fully forged FX SHO engines with upgraded superchargers, fueling, and ECU tuning.
For a Yamaha FX SHO performance build where the goal is a strong, forged, oversize piston set across all cylinders, the CP Carrillo M1083A kit delivers. It brings race oriented piston technology and durability to personal watercraft applications, helping transform the 1.8L platform into a serious performer.
