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We call this the “Kiwi Integrated Engine” which means that all of the components are manufactured by Kiwi. This guarantees the fit and operational performance of each and every part. 

Since we have been manufacturing all of the other components for some time and been test riding the heck out of the stuff, this task was already well proven.

The biggest benefit to you, the customer of taking an integrated approach is that you can feel confident of having absolutely the best quality engine available, period.

Price for complete engine less oil pump $7499.00 (unassembled $5999.00). Price with transmission and primary to follow. We will also offer the engine in short block form without cam parts. Sub assemblies will also be available: Complete cylinders with valve covers etc, ready to bolt to an engine.

The central new part of our engine is of course the engine cases. These cases look outwardly identical to stock cases, but have been improved considerably over stock. Below some of the Kiwi innovations. Cases are 1948-53 style and are available now with matched cam cover for an introductory price of $999.00

Even if the prototype powertrain has been assembled for some months, we wanted to make absolutely sure everything was perfect before releasing it.

Our slogan says "Quality Parts, Built to Ride" and we stand behind that!

Aluminum is a high end 356-T6. A 65% increase in structural strength over original cases and that’s before our structural improvements. 

¤ Drive housing external boss increased from 2-5/8 to 3-1/4
¤ Drive housing inside boss increased from 2-5/16 to 3-1/4.
¤ Drive side bearing oiling is aided by a windage trap to ensure a constant supply of oil.
¤ Integral cast in dry sump pick up.
¤ Case walls thickened and baffles have been strengthened to suit 84” strokes.
¤ Cam chest wall increased 1/16”.
¤ 2 sets of baffles to reduce oil splash and mist onto the breather.
¤ Case to cam cover gasket surface area increased upto double in critical areas. 
¤ Both case and cover are matched and line bored.
¤ Engine to primary mounting flange threaded for a clean look (no untidy nuts).
¤ All housing and bushing bores are line bored and can be enlarged to accept needle bearings.
¤ Crankcase half sealing surface increased upto 75%.
¤ Dowel pins for accurate case half locating. One of the benefits was to eliminate the radial locator groove so as to increase case half sealing surface area.
¤ Breather location can be changed from cam cover to back side of crankcase for a more visual appealing finish.
¤ Front engine mounting bosses are sculptured for a matched and finished look
¤ Polished case option is available.

Patterns were computer recreated utilizing CMM technology. The foundry we use is one of the top within the aircraft, automotive, motorcycle and racing communities. The machine shop is a major manufacturer to the other American motorcycle company so fit and finish is a slam dunk deal. Case and cam cover sealing surface improvements were consulted by James Gaskets and the other American motorcycle company.