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  • 510 cc
  • Close ratio 6 speed gearbox with new input shaft and output shafts, dogs undercut with new shifting drum
  • Dry clutch with rotary oil pump
  • Aluminum cylinder sleeves nikasil coated
  • Piston ceramic coated tops
  • Combustion chambers ceramic coated
  • Very light 75.5 high dome forged pistons with a true compression ratio for high rpm breathing
  • Camshaft advance ground into lobe on the exhaust side
  • Ampco 45 shaped valve guides
  • Raised exhaust floors
  • Lengthened intake tracks
  • valve pockets unshrouded
  • Ported and flowed on a superflow bench
  • Competition valve job
  • New 5.5mm high flow nail head stainless steel intake valves
  • New 23 degree exhaust stainless steel valves installed
  • Lightweight narrowed camshafts
  • Lightweight rocker arms
  • Head decked and glyptal insulating cam boxes
  • Secondary oil seal installed in valve setup
  • Valve cover oil drippers
  • Top end cam oiling system with oil cooler
  • Lightened crankshaft
  • Line cartridge oil filter
  • Aluminum oil drain plug

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Honda 450 wheel being setup for a 350 racer.

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Team Hansen Honda is in the business of building CR 450s from the frame up to complete race ready machines. We can also supply parts to complete your CR 450 project.
  • Frames - 4130 chromoly or stock frame
  • Tanks - Aluminum or fiberglass with replica works gas cap
  • Seats - Suede leather covering
  • CR factory style upper fork brace
  • Replica fairing stay as copied from the original honda stay (which we have in our shop)
  • Computer designed exhaust to whatever CCs your motor is. We can make the correct one to get the most horsepower from your engine.
  • Tank strap holddowns
  • We have many parts available or we can fabricate any part you need
  • Also available are work fairings and belly pans taken from original fairings
    • 250/4 Cylinder
    • 350/4 Cylinder with oil cooler scoops
    • 500/4 Cylinder with oil cooler scoops
Two CR-450s ready for the track. Let us build you one.
Making dyno runs before Daytona.

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We sell everything needed to assemble a Drixton Racer based on a donor Honda (not included) in one weekend. No one else sells these kits for less. We can also put one together for you. Give us a call.
  • Reynolds 531 brazed powder coated frame
  • Aluminum 5 gallon tank with LeMans cap
  • Aluminum footpegs with 531 tubing levers
  • Rear fender
  • Engine mounts
  • CB-450 swing arm
  • Complete gel coated fairing
  • Fairing mounts
  • Windscreen
  • Front fender
  • Tapered head bearings
  • Tach mount
  • Gel coated seat and cover

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Terry Naughtin finishing a competition head.
This is a head which has had Ampco 45 guides installed, raised exhaust floors, lengthened intake tracks, valve pockets unshrouded, ported and flowed, combustion chambers reshaped and cc'ed, competition valve job, new 5.5mm high flow valves installed, and decked with Glyptal insulating the cam boxes.
This is one of our racing heads with top end oil kit next to a customer's prepared head.
Terry flowing a Honda 450 head.

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This is a customer race prepared head with new guides, ported, competition valve job, chambers cc'ed, flowed, decked, and cleaned.

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© 2003, 2004 Team Hansen Honda