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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
6cc (110+ octane)
YZ125 YZ250 (2002 - 2024+) including WR250 YZ250X
IT200 YTM225 Tri-Moto 1983
6cc (100+ octane)
CRF250R/X 04-17
Kawasaki KX327 Phathead cylinder head kit KX327X Suzuki 6cc (110+ octane)Preorder, Heads will ship when complete. We anticipate all colors available by mid summer or sooner. Insert selection TBD 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 and transfers heat better than cast aluminum. The two