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Yz450f Big Bore DEALS

 - Athena (P400485100014) 98mm 478cc Big Bore Cylinder Kit
Athena (P400485100014) 98mm 478cc Big Bore Cylinder

Athena's Big Bore kit brings the raw power you have been missing in an easy to install, reliable package that bolts on with no machining needed in most cases, and includes easy-to-follow step-by-step installation instructions. Constructed from aluminum, the cylinder is lined with a nickel-carbide coating for durable, reliable performance, and the water jackets have been widened for a higher flow rate, cooling the cylinder, resulting in less power lost due to heat. Features a forged piston that's been molybdenum coated for high performance use and extended wear life. Includes: big bore cylinder, big bore piston, piston pin, piston pin rings, gasket kit. Note: To achieve optimum performance re-jet the carburetor with the available jet kits. Fits: Yamaha WR 450 F 2003-2006; YZ 450 F 2003-2005.

  • Brand: Athena
  • ASIN: B00IKIHYX0
  • UPC: 188383353026
 - Cylinder Works 20003-K01HC Standard Bore HC Cylinder Kit
Cylinder Works 20003-K01HC Standard Bore HC Cylinder

Perfect for when you need to replace a tired, worn out, or blown up engine and want a bump in power, this Standard Bore High Compression cylinder kit increases the compression to 13.5:1 from 12.5:1 for more horsepower and torque. The cast aluminum cylinder is Nickel Silicon Carbide (NSC) electroplated, providing a durable, low friction, wear resistant surface with oil retention capabilities, and allows for greater heat dissipation to the water jacket. Cylinder Works kits come with a Vertex piston that is forged for superior strength and durability, and is molybdenum disulphide coating for reduced wear and faster break in. Kit includes cylinder, piston, rings, wristpin, circlips, and special gasket kit with full instructions. Plus, no machine work to your engine or cases is required. Fits: Yamaha YZ 450F 2006-2009, WR 450F 2007-2012.

  • Brand: Cylinder Works
  • ASIN: B0031BGLW6
 - Forged Top End Kit - Standard Bore 96.93mm, 12.5:1 Compression For 2012 Yamaha YZ450F Offroad Motorcycle
Forged Top End Kit - Standard Bore 96.93mm, 12.5:1 Compression For 2012 Yamaha YZ450F Offroad

Forged Top End Kit - Standard Bore 96.93mm, 12.5:1 Compression For 2012 Yamaha YZ450F Offroad Motorcycle All pistons are heat treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeCast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong pistonForged pistons are forged from 2618 aluminum for superior strength and durabilityForged High Compression pistons improve power and torque across entire rpm rangeBig Bore pistons increase engines displacement, torque, and peak horsepowerForged Replica pistons are forged OE replacementsReplica pistons and all rings are OEM replacementsTop end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing when applicableReplacement two-stroke piston rings sold individually; four-stroke piston rings sold as a set *Bore Diameter: 96.93mm ^ Compression: 12.5:1 Compression ^ Sizing: Standard Bore

  • Brand: RD - Vertex
  • ASIN: B07SBL8F79
  • UPC: 346414192321
 - Cylinder Works 20003-K01 Standard Bore Cylinder Kit
Cylinder Works 20003-K01 Standard Bore Cylinder

This direct factory replacement cylinder kit with a stock bore of 95.00mm and a compression ratio of 12.5:1 has what you need to replace that tired, worn out, or blown up engine without breaking the bank. The cast aluminum cylinder is Nickel Silicon Carbide (NSC) electroplated, providing a durable, low friction, wear resistant surface with oil retention capabilities, and allows for greater heat dissipation to the water jacket. Cylinder Works kits come with a Vertex piston that is forged for superior strength and durability, and is molybdenum disulphide coating for reduced wear and faster break in. Kit includes cylinder, piston, rings, wristpin, circlips, and special gasket kit with full instructions. Plus, no machine work to your engine or cases is required. Fits: Yamaha YZ 450F 2006-2009, WR 450F 2007-2012.

  • Brand: Cylinder Works
  • ASIN: B0031BLWFM
 - Cylinder Works 20001-K02 Standard Bore Cylinder Kit
Cylinder Works 20001-K02 Standard Bore Cylinder

Cylinder Works standard bore kit repairs engine reliably with ease by including a new cylinder machined and plated in the USA, a Vertex standard bore piston kit manufactured in Italy, and a top-end gasket kit. Just bolt-on and go.

  • Brand: Cylinder Works
  • ASIN: B0031BGKS6
 - Top End Repair Kit (A) - Standard Bore 96.95mm, 12.5:1 Compression 2014 Yamaha YZ450F Offroad Motorcycle
Top End Repair Kit (A) - Standard Bore 96.95mm, 12.5:1 Compression 2014 Yamaha YZ450F Offroad

Top End Repair Kit (A) - Standard Bore 96.95mm, 12.5:1 Compression For 2014 Yamaha YZ450F Offroad Motorcycle MOS 2 (Teflon/Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizuresMachined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%Anodized Domes Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistonsHypereutectic Casting Process Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperaturesTop End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit *Bore Diameter: 96.95mm ^ Compression: 12.5:1 Compression ^ Sizing: Standard Bore

  • Brand: RD - Namura Technologies Inc.
  • ASIN: B07NCTGFVR
  • UPC: 805937651291
 - Cylinder Works 21003-G01 Big Bore Gasket Kit
Cylinder Works 21003-G01 Big Bore Gasket

Cylinder Works replacement big bore gasket kit allows the removal and installation of the cylinder with a new head, base, cam chain tensioner, and exhaust gaskets.

  • Brand: Cylinder Works
  • ASIN: B001TXFME6
  • UPC: 182682509931
 - Big Bore Cylinder Kit (478cc) - 3.00mm Oversize to 98.00mm, 12.5:1 Compression For 2008 Yamaha YZ450F Offroad Motorcycle
Big Bore Cylinder Kit (478cc) - 3.00mm Oversize to 98.00mm, 12.5:1 Compression For 2008 Yamaha YZ450F Offroad

Big Bore Cylinder Kit (478cc) - 3.00mm Oversize to 98.00mm, 12.5:1 Compression For 2008 Yamaha YZ450F Offroad Motorcycle Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylindersThree kit options to choose from: Standard Bore, Standard Bore Hi-Compression and Big BoreCylinder kits include matched Vertex pistons to ensure longevity, performance and reduced engine noiseNickel Silicon Carbide plated for long lifeKits come complete with gaskets, cylinder, piston, rings, pin and clipsBig bore cylinders do not require machine work (unless noted) *Finish: Plated ^ Quantity: 1 Kit

  • Brand: RD - Cylinder Works
  • ASIN: B07S6FPV3Y
  • UPC: 346414246659
 - Cylinder Works 21005-K02 Big Bore Cylinder Kit
Cylinder Works 21005-K02 Big Bore Cylinder

Cylinder Works big bore kit.

  • Brand: Cylinder Works
  • ASIN: B00T6IYWHY
 - CALTRIC CAST ALUMINIUM ENGINE CYLINDER JUG Fits YAMAHA YZ450F 2003 2004 2005 2006 STANDARD BORE 95mm
CALTRIC CAST ALUMINIUM ENGINE CYLINDER JUG Fits YAMAHA YZ450F 2003 2004 2005 2006 STANDARD BORE

Used on: YAMAHA - YZ450F 2003-2005

  • Brand: Caltric
  • ASIN: B06WVB8SZ2

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