KTM250SX KTM250XC 2007-2016 Phathead cylinder head kit Chamber selection:SX 11 22.5cc 110+ WR250 YFB250 Timberwolf 2x4 YFM350ER

WR250 YFB250 Timberwolf 2x4 YFM350ER Moto-4 YFM350FW Big Bear 4x4 YFM350X Warrior YFM400F Kodiak 4x4 YFS200 Blaster YFZ350 Banshee 1994

KX112 2014+

Available for all models: Honda Kawasaki KTM HUSKY GAS GAS Suzuki Yamaha

Y30  - Stock

KTM250SX KTM250XC 2007-2016 Phathead cylinder head kit Chamber selection:SX 11 22.5cc 110+ WR250 YFB250 Timberwolf 2x4 YFM350ERKTM250SX KTM250XC 2007 2016 Phathead cylinder head kit Chamber selection: XC10 26. 8cc XC stock compression XC11 25. 5cc SX stock compression 98+ SX10 23. 9cc 105+ SX 11 22. 5cc 110+ Phathead Kits include a head shell with one combustion chamber, two sets of o rings, cylinder and 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