Black Series Cylinder Head – KTM 300 EXC/XC and Husky 300 TE/TX 2017 onwards


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Black Series Cylinder Head – KTM 300 EXC/XC and Husky 300 TE/TX 2017 onwards


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Select your desired compression ratio from the drop down menu. All designs will work with stock base gaskets and cylinder heights and offer significant improvements over stock heads.

LOW COMPRESSION: Roughly the same compression ratio as stock EXC or TE, much tighter squish clearance and better design than stock, suited to Extreme Enduro, resists overheating very well, pulls from very low rpm smoothly and predictably. Still gives a very noticeable change in performance over stock despite compression ratios being similar.

MEDIUM COMPRESSION: Our standard design, higher compression ratio than stock but still works fine with 95 or 98 RON fuel. Gives a very noticeable increase in power throughout the rev range. Give much smoother power delivery at low/mid revs. Squish clearance is much tighter than stock. Fuel economy is greatly improved over stock. Recommended for most riders.

HIGH COMPRESSION: Requires 98 RON fuel.  Squish clearance is much tighter than stock. Gives maximum bottom/mid power but less overrev. More aggressive power delivery. Will overheat more easily in tight conditions.



Our new TSP ‘Black Series’ cylinder heads offer improved performance, reliability and fuel economy. They are the best bolt on mod you can buy for your bike!

These sand cast one-piece heads feature TSP’s proven combustion chamber designs and are a MUST HAVE mod for most current model offroad bikes. Our combustion chamber designs have been used by hundreds of happy customers and have been extensively dyno tested… the gains are consistent and include: increased power throughout the rev range (especially bottom/mid), improved fuel economy, greatly reduced risk of detonation, increased top end life in many models, and much SMOOTHER power delivery.

The one piece design offers better heat dispersion throughout the casting than common aftermarket 2 piece designs. This means improved heat transfer to the cooling system, improved reliability and less risk of overheating. The ‘Black Series’ coating also offers a tough chip resistant layer that resists weathering and solvents and makes your engine stand out!

Black Series heads will bolt onto your standard cylinder and are designed to work with standard base gaskets. If you are unsure of your current base gasket thickness we can advise the correct thickness to achieve the necessary cylinder height and squish clearance.

We can also advise baseline jetting specs to go with your new ‘Black Series’ head. The customer takes all responsibility for ensuring that jetting is appropriate for their riding style and conditions.

Additional information

Compression Ratio

High Compression, Low Compression, Medium Compression


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Model List

Make Model Year
Husqvarna TE/TX 300 2017
Husqvarna TE/TX 300 2018

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