17-20 CRF450R - CR500 Motor Swap Kit (Weld in)

Weld in kit for your 17-20 CRF450R, to convert your frame to accept a 89-2001 Honda CR500 Engine.    The 17-20 CRF450R frame requires some welding modifications to make this engine work properly and make clearance for your exhaust in the center of the frame.    *** We recommend you have a professional Tig welder do the fabrication and welding.  WHAT YOU GET:  - Weld on Billet Y Frame section (raw aluminum finish)  -Bolt on Billet front motor mounts  -Weld on lower mounts -Bolt on Fabricated head stay (bare finish)  -Billet swingarm pivot spacers  Also included is our Ignition Coil Mount that will locate it correctly on the chassis.  OPTIONS / UPGRADES:  You can also choose to purchase our Fuel pump flange ***   or make your own.  You can also choose to include Engine Mounting hardware for all motor mounts + head stay *** or use your own.  ** If you want to run the older style 85+ (short rod engine) - we recommend running a cylinder spacer and updated long rod crank to get