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KTM300SX 2023 Husqvarna TC300 TBI Phathead cylinder head kit

Regular price $350.00 USD
Regular price Sale price $350.00 USD
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KTM300SX 2023 Phathead cylinder head kit


Free choice of update chamber when we release our compression and mod options. Purchase now and get the stock chamber.  We will contact you when we make updates as we are anxious to test and tune.

Chamber selection:

We will update our selection as tuning capabilities are unlocked.  Currently we offer a stock compression chamber.                                                                                          

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 piece design allows an increase in coolant flow as well as surface area which improves cooling for better consistency and performance.   

One of the main benefits of the product is the replaceable combustion chamber which are available in a range of compression options.

Suggestions : Swap chambers to adjust performance for a variety of riding conditions and track types or keep a spare in case of engine failure.