Suzuki RM125 Phathead cylinder head kit 1991-2003 YZ125 Currently we offer a stock

Currently we offer a stock compression chamber

Heads will ship when complete

251SX -  25cc Mid compression 95+ octane reccomended

sleek design and stainless hardware finish off these specialty tops  Fit

Suzuki RM125 Phathead cylinder head kit 1991-2003 YZ125 Currently we offer a stockSuzuki RM125 Phathead cylinder head kit 1991 2003 Chamber selection: Y11 10. 0cc Stock Y12 9. 3cc (95+ octane) Y13 8. 8cc (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