Additional Images

Yamaha YZ450F 470cc Big Bore Kit (2020-22)

DCR Premiere Engine Kit
This kit is pieced together with the highest quality internals of any Big bore available on the market.
Starting with an OEM Genuine Yamaha Cylinder. Nothing beats OEM Castings of the Cylinder head.
Accompanying the Cylinder is a custom made light-weight High compression racing Piston.
Concious of weight down to tenths of a gram, the kit was made to ensure balance at high RPM. It is critical to have a piston that can move well at the peak rpm specturm.
We Bore the cylinder specifically for each custom made piston ensuring a fit unlike anything else available.
Featuring the best Gaskets Rings and Surclips availble

Recommended Fuel | VP MR-12 or ETS mx18, MX21
Availability: VERY LIMITED QTY
Shipping: Please allow for 7-14 business days for Made-To-Order parts
Was: $1,899.00
Sale: $1,599.00
Save: 16%
Save: $300.00


  • Yam-YZ450F-BBK22
  • Yam-YZ450F-BBK22
  • New

Shipping Information

  • Item Requires Shipping
  • 4.0 lbs.
  • $5.00
  • This item ships in its own box.
  • This item will require a special quote for shipping charges.
  • Please allow for 7-14 business days for Made-To-Order parts

Customer Reviews

Comment Total Reviews (0)

Write the First Review!

You must login to post a review.

  • Have a question? Ask the Pros
  • 951-296-9669Mon - Fri 9:00 - 5:00 PM PST