SKU: 4789

904 Big Bore Stage 2 Engine Kit Complete Build


Available Options

Calculate Shipping

Pick Up from TPP - $0.00
Pick Up your order from Triumph Performance Parts 72 Main Street, Maldon Victoria 3463 (Please note that if you are ordering from Interstate and select Pick Up, someone will call to confirm this. If you're not picking up please select the appropriate Shipping option.)


Suitable for High K Engines

Ever had the urge to get that 790 or 865 engine sorted out the way it should have been built!? Well TPP have come up with the solution - our in-house 904 Complete Engine Kit.

The kit consists of the following;

  • Wiseco 904 Big Bore Kit
  • Heavy Duty Barnett Clutch kit
  • Either 270 or 360 degree performance cams (optional)
  • Barrel Machining
  • All new gaskets
  • New Cam Chain
  • New Big End and Main Bearings
  • Valve Guide Seals 
  • Check all other components For wear and serviceability.
  • Please Note additional cost may apply for badly worn Engines.

Your Bonneville, Thruxton, Scrambler, America or Speedmaster will be a completey different bike after we have finished with it!

For high Km Engines other parts may be required.

Your Engine Is totally stripped, cleaned and inspected. We then reasemble the cases to the same detail we use to build our Salt race Engines. We replace the Cam Chain Big end and Main bearings. Check and test Oil pumps and replace all Gaskets and Seals.

We then Assemble the top end with the 10.5 to 1 pistons and 904 Big bore kit and cams which are optional. 

We check the head for wear and servicability inspecting cam bearings, valves, guides and replacing valve seals. If Further attention is needed in this area we will ring and advise of your options, keeping you in the loop of the build as we go.


SKU 4789
Brand TPP


Be The First To Review This Product!

Help other Triumph Performance Parts users shop smarter by writing reviews for products you have purchased.

Write a product review

Others Also Bought

More From This Category