Kawasaki Ninja EX400 Standard Bore “Turbo” Piston Kit

Description

Kawasaki Ninja EX400cc Turbo Piston is a Stock bore “TURBO” piston are built to the Spears Racing design for Turbo applications and has a 9 to 1. compression ratio, with Large Valve Pockets for over valves. The Spears Kit includes pistons, Gas Nitrided Steel rings, Chrome Moly Chamfered wrist pins, and cir clips. At the forefront of performance, piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies.

Spears Racing has been designing and making race pistons with the State of the Art CNC Machining and manufacturing alliances with JE Pistons for decades.Spears Racing continuous committed to excellence to advance as the industry changes. This commitment has resulted in more forgings specific to certain applications, proprietary treated wrist pins and piston rings manufactured only for us. Each of these aspects has been put through stringent research and development stages to ensure that our product will exceed your standards.

Spears Racing along with JE Pistons the piston manufacturing has been a result of continuous research and development both in the dyno room and on the race track winning championships all over the world.

Utilizing State of the Art CNC machines for manufacturing, along with purpose-designed forgings, while being able to maintain exacting specifications on each and every piston – holding tolerances to millionths of an inch.This is the new forging that is lighter than stock OEM Pistons.

Spears Racing Piston Kits have been winning races and Championships all over the world for over 4 decades. Spears Racing pistons have been in several of the race wins in close course racing and in road circuits in Europe and has won the Isle Of Man TT Twins race several times.

“Preferred Performance” Pistons Kits By Spears Racing

What are Piston Terms

Spears Racing’s Kawasaki Ninja EX400cc Turbo Piston Includes the Following:

Large Valve Pockets for 1mm over valves
Pistons x 2
Wrist Pins x 2
Piston Rings x 2
Cir Clips x 4

Piston Weight:152 grams

Detailed install specification sheet.