Honda CR250 1986-1991 Phathead cylinder head kit Color:Blue KX250F (2006-2010)

KX250F (2006-2010)

Our cobra CX50 inserts are made in house to fit our Billet high flow Phathead shell or the OE cast cylinder head shell

251SX -  25cc Mid compression 95+ octane reccomended

these gas caps offer an extra layer of protection over the traditional plastic caps which only restrict fuel flow when turned upside down

Honda CR250 1986-1991 Phathead cylinder head kit Color:Blue KX250F (2006-2010)Honda CR250 Phathead cylinder head kit 1986 1991 Chamber selection: H30 21. 8cc Stock H31 20. 6cc 95+ octane H32 19. 7cc 100+ octane H33 18. 5cc 105+ octane H34 17. 4cc 110+ octane Phathead Kits include a head shell with one combustion chamber, two sets of o rings, cylinder head nuts, copper washers, some stickers for your bike and tool box and installation instructions.. Phathead cylinder heads are made of 6061 T6 billet aluminum. The material is