86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder
86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder

86-89 TRX250R Big Bore Kit Cheater Stealth 270cc Top End Rebuild Ported Cylinder

$1,660.00
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Shipping calculated at checkout.
This part is compatible with 10 vehicle(s).
Notes Year Make Model Submodel
  1986 Honda ATC250R --
  1985 Honda ATC250R --
  1989 Honda FourTrax 250 TRX250R 2x4
  1988 Honda FourTrax 250 TRX250R 2x4
  1988 Honda FourTrax 250 TRX250X 2x4
  1987 Honda FourTrax 250 TRX250 2x4
  1987 Honda FourTrax 250 TRX250R 2x4
  1987 Honda FourTrax 250 TRX250X 2x4
  1986 Honda FourTrax 250 TRX250 2x4
  1986 Honda FourTrax 250 TRX250R 2x4

 

SUPER STEALTH BIG BORE POWER!  PULL ON ANY KIT OF COMPARABLE SIZE!

At this time we are only doing core replacements and cylinder work to make yours like new.
our lead times on a replacement cylinder is unknown at this time. We can redo yours, however.
Contact us for details. We do have spynx, lynx, and Puma in stock!
  • Used OEM Honda cylinder bored and diamond honed to 68mm
  • Full race port and polish
  • Wiseco 68mm big bore forged piston
  • Nitrite coated piston rings
  • Chrome wristpin
  • Circlips
  • SKF wristpin bearing
  • Pro Design billet cool head
  • Billet cool head dome
  • Cool head o-rings
  • Talon TITANIUM cylinder head studs with 12 point nuts - LIFETIME WARRANTY*
  • NGK spark plug
  • Runs on pump or race gas
  • Drop in kit no machining required
  • Works on all Honda  '85-86 ATC250R and '86-89 TRX250R models
Two stroke engines get more power from porting than they do from increased size, and this kit combines both.  Our porting is the best in the industry, guaranteed.  When you have that AND the larger bore, plus increased compression from the Cool Head, you have a top end that will stomp the competition, and because it is a stock cylinder they will never know it's coming!  You can get 20+ hp more, depending on what else is done to the engine.

We ship next day most of the time. Modquad parts are shipped Monday-Thursday. Engine Kits are 3-5 business days.

We don't do backorder! If your items has already sold you will be notified immediately and you money refunded on the spot.

Sold items are removed daily.

If you see it on this website, it is 100% in stock unless it just sold before you clicked buy.

If you call we answer, if you text we respond, if you have a question we respond. Sometimes we sleep so it could be next morning but we will respond.

Thank you for shopping with us! We appreciate you!

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