Suzuki RM125 Phathead cylinder head kit 2004-2007 Chamber selection:F13 - 6.0cc (100+ octane) If you have a Hot

If you have a Hot Rods stroker crank our insert will work

Improved flow

1cc (105+ octane)

5cc    110+

CRF450R 02-16

Suzuki RM125 Phathead cylinder head kit 2004-2007 Chamber selection:F13 - 6.0cc (100+ octane) If you have a HotSuzuki RM125 Phathead cylinder head kit 2004 2007 Chamber selection: F11 7. 8cc StockF12 6. 9cc (95+ octane)F13 6. 0cc (100+ 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 and transfers heat better than cast