Rated Power is based on using a very large bore Carb such as the 48mm Mikuni or S&S D series and Hooker Step Tuned Short Staggered Dual Ex. You must have heavy-duty drive train components. You must have a frame that can accept an engine 5/8” taller than a stock Evo.

These Engines are available in both Assemble Complete and Unassembled Long blocks. This is a difficult engine to describe the performance level to anyone who hasn't had it and this is the correct answer for the customer who demands the highest performance availible. All Engines feature our heavy duty C355 Castings and Dynamic Balanced Press Pin Crank Shafts.

Ultima has put together our first High Output Engine packages for the most demanding performance enthusiast.