Honda CR250 1992-1996 Phathead cylinder head kit Chamber selection:H33 - 18.5cc (105+ octane) Honda CR125 Phathead cylinder head

Honda CR125 Phathead cylinder head kit 2004

9cc 100+ octane

YFB250FW Timberwolf 4x4 YFM350F Wolverine 4x4 YFM350FW Big Bear 4x4 YFM350X Warrior YFM400F Kodiak 4x4 YZ125 1997

Athena KX125 144cc big bore compatible

Remove the original guts from the stock plastic cap and install into the new billet shell

Honda CR250 1992-1996 Phathead cylinder head kit Chamber selection:H33 - 18.5cc (105+ octane) Honda CR125 Phathead cylinder headHonda CR250 Phathead cylinder head kit 1992 1996 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