Skip to content
Due to Thanksgiving and the holiday rush, our current handling time is approximately 4–5 business days. We sincerely appreciate your patience and understanding. We truly appreciate your business and are thankful for another great year serving our customers. If you have any questions or concerns, please contact us—our team is working as hard as possible to ship all orders promptly.
Due to Thanksgiving and the holiday rush, our current handling time is approximately 4–5 business days. We sincerely appreciate your patience and understanding. We truly appreciate your business and are thankful for another great year serving our customers. If you have any questions or concerns, please contact us—our team is working as hard as possible to ship all orders promptly.

04 05 TRX450R TRX 450R Rebuilt Big Bore Stroker Motor Assembled Engine 500cc Kit

by BPRATV
Save 36% Save 36%
Original price $4,999.99
Original price $4,999.99 - Original price $4,999.99
Original price $4,999.99
Current price $3,199.99
$3,199.99 - $3,199.99
Current price $3,199.99
COMPLETE ASSEMBLED 500cc BIG BORE STROKER!

  • Used core bottom end including cases, transmission, shift forks counter balancer
  • Core bottom end was torn down, inspected, all parts cleaned, and sand blasted
  • All work done by our in house mechanics, who have over 50 years combined experience
  • All other parts are new, listed here:
  • 97mm heavy duty big bore cylinder
  • 97mm Wiseco 11.5:1 forged piston
  • Nitrite coated piston rings
  • Chrome wristpin
  • Circlips
  • Hotrods +3mm stroker crank with rod
  • Crank bearings
  • Crank balancer bearings
  • Transmission bearings
  • Clutch bearings
  • Water pump bearing
  • Complete gasket kit
  • Cometic MLS big bore head gasket
  • Seal kit
  • Water pump mechanical seal
  • HD cam chain
  • OEM cam chain guides
  • Talon TITANIUM cylinder head stud kit
  • Can be used with your stock head, no mods required (except carb re-jetting)
  • Comes with 1 year warranty*
  • Photos are of actual item you will receive
*99% of people on this planet are not qualified to work on an engine.  Installing this item is NOT DIY, and we always strongly suggest it be done by a qualified, experienced mechanic.  Warranty does not cover any failure that is a result of improper installation, tuning, break in, or misuse.  For any warranty to be considered the parts in question must first be sent to us for inspection, no exceptions.  Any shipping costs associated with returning parts for inspection are the responsibility of the buyer.  We can not warranty anything based solely on phone calls, emails, photos, videos, what you read online, or what another mechanic says the problem is.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare