Kawasaki KX250 Phathead cylinder head kit 1995-2002 Color:Black 12* and flat top chambers

12* and flat top chambers available upon special request

Yamaha YZ125 Phathead cylinder head kit 2005-2026

The material is stronger and transfers heat better than cast aluminum

We do not suggest using the HotRods 4519 crankshaft with the nylon inserts

This model does not have the compression release

Kawasaki KX250 Phathead cylinder head kit 1995-2002 Color:Black 12* and flat top chambersKawasaki KX250 Phathead cylinder head kit 1995 2002 Chamber selection: K21 21. 6cc Stock compressionK22 20. 2cc (95+ octane)K23 19. 4cc (100+ octane)K24 18. 3cc (105+ octane) Kit includes required engine mounts. 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