Pay in 4 interest-free payments of $46.88 Learn more
Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
6cc (100+ octane)K53 - 38
4cc (95+ octane)
WR200 WR250 WR500 YFB250 Timberwolf 2x4 YFM350FW Big Bear 4x4 YFM350X Warrior YFS200 Blaster YFZ350 Banshee 1991
KTM 50SX 2024 2025 Husqvarna TC50 2024 - 2025 / GasGas MC50 2024 -2025 Phathead cylinder head kit
KTM300SX 2023+ Phathead cylinder head kit
Yamaha Athena YZ125 144cc 58mm Big Bore Cylinder Phathead version 2022-present CR500 6cc (100+ octane)K53 - 38We replicated the Athena chamber to offer the best performance for your two stroke big bore kit. Athena YZ125 58mm 144cc big bore compatible. Phathead Kits include a head shell with one combustion chamber, cylinder head nuts, copper washers, some stickers for your bike and tool box and installation instructions.. Phathead cylinder heads are made of 6061 T6 billet aluminum. The material is stronger and transfers heat better than cast aluminum. The two
US$ 400.00
US$ 110.00
US$ 475.00
US$ 1425.00
US$ 225.00
US$ 112.50
US$ 24.02
US$ 125.00