Cylinder Head Top End Cover For KTM EXC Husqvarna TE GAS GAS EC 250 2024-2025

Features:

• Features an improved combustion chamber design that gives more performance throughout the rev range as well as reduced risk of detonation. It has been designed and tested to work with 91+ octane fuel. The head comes with a complete head gasket kit. 
  
• Compared to stock head insert: The Original compression before installation is approximately 170 PSI, after installation is approximately 183 PSI (as picture shown), Squish clearance is 1.2 mm.
  
• Made of 7075 aluminum that withstand the high pressures and temperatures, so it won't break under pressure.
• Consistent power gains throughout the rev range especially in the bottom/mid:
  
  • Improved fuel economy
    
  • Greatly reduced risk of detonation
    
  • Improved engine life
    
  • Smoother power delivery
    
  • Does not require race gas

Item Specifications:

• Brand: NICECNC
  
• Condition: 100% Brand new
  
• Material: 7075 Aluminum
  
• Processing: CNC-machined
  
• Cap Finish: Anodized

Disclaimer/Liability Statement:

• These products are intended for closed-course competition use only.
  
• It is the owner's responsibility to ensure that jetting/fueling is appropriate for local weather and conditions to avoid engine damage.
  
• We are not responsible for any damage, injury or loss resulting from the use of these products.

Package Included: 
1X Cylinder Head Kit

Fitment:
For KTM 250 EXC 2024-2025 
For Husqvarna TE250 2024-2025
For GAS GAS EC250     2024-2025

Installation Instructions:

• 1. Drain coolant and remove stock head.
  
• 2. Set the deck height using different base gaskets as needed. Deck height is the distance between the top of the cylinder and the top of the outer edge of the piston at the top stop (TDC).
  
• 3. Install the new head o-ring on the top of the cylinder and make sure the locating pin is in place and seated properly.
  
• 4. Place the supplied 23 x 2.5mm o-ring into the groove on the top of the combustion chamber insert. Place the outer "cap" portion of the head over the insert, being careful not to move the o-ring. Screw the spark plug into the top of the insert with your fingers. Holding the spark plug, lift the head assembly as a unit onto the cylinder. Carefully position the head, making sure the locating pins are aligned and the o-ring stays in place.
  
• 5. Tighten the nuts/bolts in a criss-cross pattern to the required torque specification in the owner's manual. Reinstall the head onto the chassis mounting bracket.

Test Data:

• Test Vehicle: 2024 KTM 250 EXC
  
• Operating time: 1 Hour
  
• Raw Compression: Approx. 170 PSI
  
• Compression with NICECNC Part: Approx. 183 PSI
  
• Compression test data may vary from vehicle to vehicle at different operating times.

Disclaimer: 

Nicecnc parts are not sponsored or endorsed by, or affiliated with the brands its parts fit, including KTM, Husqvarna, Honda, Yamaha, Kawasaki, Suzuki, Beta, GASGAS, Sherco, etc.