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184cc Big Bore Kit

NEW
Includes TB 590 PISTON 64mm(klx/yx Long skirt piston)

Fits all YX160 , GPX160 and OGM 160cc engines
- All aluminum ceramic plated 64mm cylinder with skirt
- Lightweight high compression 64mm piston with rings, pin, & clips
- Head gasket kit - includes the cylinder head o-ring set and an exhaust gasket.

This is our most affordable 184 bore kit for the YX160/GPX160 engine. Works great with your stock YX160/GPX160 head or our new V2 Race Head.  The kit includes an all aluminum ceramic plated 64mm cylinder (with short skirt) which will increase your engine displacement to 184cc.  This cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker). Additionally, our head gasket kit includes a head o-ring set and exhaust gasket so you don't have to re-use your old ones or make a trip to your local dealer to get new ones and spend more money.  The new bore kit consists of high quality parts and requires no machining to the cases - bolt on and go! This kit is only for the YX/GPX160 and not the YX/GPX150

There are no installation instructions, but if you can replace your piston, you can install this kit. If you don't have any experience working on your engine, we highly recommend having a professional technician install this kit. The parts are installed in the same manner as OEM parts.