S3 STARS HEAD CYLINDER KTM EXC 250 300 ORANGE STK-985

S3 ,STARS HEAD ,ENDURO CYLINDER HEAD KIT

STAR HEAD cylinder heads: Forged in the best aluminum alloy to obtain a top quality and high durability components. Its new design has thicker walls and higher water flow to ensure a maximum cooling rate.

Delivered with 3 inlets:
• Compression: Standard, high comp. &, high high comp.

New design:
• Capable of cooling faster, thus low revs power increases.
• Forging them eliminates the hot spots found on casted heads.

New look:
• Its shape and color makes it beautiful.
• Noticeable at a distance and stunning at a close view.

The kit includes:
• 1 Forged aluminum cylinder head cover.
• 3 Inserts: std, high comp. &, high high comp.
• 5 O-rings: top cylinder &, inserts
• 6 Copper washers for M8 cylinder head bolts.

Different inlet compressions, what varies?
• ,Standard (STD) ,compression: Higher torque and power at low revs. Even though it is similar to the original compression, you will notice the difference.
• ,High (A) ,compression: Possibility to add another gear, better traccion and very clean response.
• ,Very high ( AA y AAA) ,compression: Specially for 1500m high or more, or MX engine preparation.

(Low compression insert as optional accessory)

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STK-985TPI-300-O,STK-985TPI-250-O,STK-985-300-O ,