Performance Machine Works

Welcome To Our Specialty Cylinder Work Page "Performance Machine Works" In Where We Specialize In Repairs and Modifications For Motocross and Motorcycle Cylinder Heads. We Use A Rottler SG-7 Seat Machine Which Is Designed To Re-Profile The Valve Seat In Many Different Angles To Increase Aif Flow Performance, Efficiency and ReliabilityPlus Some of Our Other Services Include Valve Seat Replacement, Valve Guide Replacement, Port & Mill Machining To Our Advertised General Servicing & Complete Re-Conditioning Services Advertised Right Below! 


COMPLETE CYLINDER HEAD RE-CONDITIONING  

We Disassemble Your Cylinder and Clean and Soda Blast To Achieve The Fresh Factory Look, Valve Seat & Guides Are Installed and Receive A Multi Angle Cut To Increase Air Flow Velocity & Performance, For Valve Train Components We Use OEM For General Applications and Kibblewhite Black Diamond Stainless Steel!


COMPLETE CYLINDER HEAD RACE SET-UPS

We Do The Same Services Thats Required In The General Cylinder Head Re-Condition Like Stated Above, Except Race Heads Use Copper Beryllium Seats, Bronze Guides and Titanium Valves To Achieve Ultimate Performance, Plus We Offer Full Porting & Polishing Work! 


ENGINE REBUILDING

If You Ship Us or Drop Off Your Engine To Rebuild, We Disassemble It Down To The Bare Cylinder Head, Cylinder and Crankcases and Then We Clean and Sodablast. We Then Re-Assemble The Engine With Fresh New Parts Such As Piston Kit, Connecting Rod, Main Bearings, Timing Chain, Rebuilt Water Pump & Oil Pump, Spark Plug, Gaskets and Seals, We Also Ball Hone The Cylinder and Complete One of The Advertised Cylinder Head Services Listed Above!

PLEASE NOTE: This Is The Normal Procedure For An Engine Rebuild, We Can Replace Damaged Cylinder Heads and Crank Cases, Worn Out Gears, Forks, Clutch Parts or Nikasil Cylinders That Need To Be Re-Plated or Steel Cylinders That Need To Be Bored/Sleeved For An Additional Cost!


FILL OUT THE SERVICE FORM AND SHIP US YOUR HEAD, CYLINDER AND/OR ENGINE