Kawasaki KX250 Phathead cylinder head kit 2005-2007 Color:Green 300SX - 23

300SX  - 23

This kit includes the required engine mounts

the inserts are cut for the 85 bore which is

2cc stock compression

5cc  (100+ octane)

Kawasaki KX250 Phathead cylinder head kit 2005-2007 Color:Green 300SX - 23Kawasaki KX250 Phathead cylinder head kit 2005 2007 Chamber selection: W21 21. 6cc Stock compressionW22 20. 2cc (95+ octane)W23 19. 4cc (100+ octane)W24 18. 3cc (105+ 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 stronger