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Ultima® 4.400 Bore 140 CI Engine

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  • 140 CI
  • Bore: 4.400
  • Stroke: 4.625
  • Press Pin Crank w/ 8” Rods
  • Piston: Forged Flat Top w/ 927 Pins
  • Compression: 10.8:1
  • Cam Shaft: .640” Lift
  • CNC Ported Oval Port H.O. Heads
  • 2.300” Int  1.800” Ex Valves
  • Chrome Billet  Reed Valve Rocker Boxes
  • Billet Oil Pump
  • Ignition is installed on assemble engines
  • Includes 48mm Mikuni Carburetor
  • Rated Power 165 HP—170 Lb Ft Torque

Rated Power 140 C.I. 160 HP  with 175 LB FT Torque.

Not EPA Compliant.

Machined In U.S.A. Cast-in steel inserts guaranteed not to move. Large bore breather for increased crank case vacuum and less blow by. 1/2” Alignment dowels for true line bore. Counterbored stainless allen head case bolts. Close machining tolerances. Made from prime C355-T6 aluminum that is superior in strength to A356. Styling and cosmetic machining for a custom look.
Ultima® New state of the art designed crankshaft incorporates a massive 1.670 diameter pin that is pressed into the one piece, heat treated, 4140 steel flywheel half making these crankshafts some of the strongest available on the market today. These crankshafts feature all new 8.0” long H-Beam rods with .927 diameter wrist pins to handle all the power you can throw at them. These are also balanced using our exclusive methods making these some of the smoothest engines in the industry.
C355-T6 Casting. Cast in liners will not move. . All fins are machined for an excellent cosmetic appearance.
C355-T6 Casting. All fins are machined for excellent cosmetic appearance. Twin Cam Styling means 30% more fin than most Evolution® style heads for cooler running. Compression release valves. 2.300 stainless intake valves, 1.800 stainless exhaust valves. CNC ported.  Manganese Bronze guides. High silicon wire valve spring with chromoly retainer.
You must have a frame that can accept an engine 5/8” taller than a stock Evo.
You must have heavy-duty drive train components.
Limited warranty.
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. Other Combinations will change the power level attainable
Ultima® 4.400 Bore 140 CI Engine
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 ultima® 4.400 bore 140 ci engine ultima 8
Made in USA

The Ultima Competition Series Engine combine high quality components with affordable pricing giving you the best value available.

Ultima proven performance combinations deliver more horsepower & due to our exclusive balancing methods, we feel they are the smoothest engines on the market today. All components are machined on state of the art CNC equipment for guaranteed dimensional accuracy & repeatability. Ultima customers agree these engines are the best value anywhere.

El Bruto® Competition Series Ultima Long Rod 140 CI  Engines

Ultima has put together our first High Output Engine packages for the most demanding performance enthusiast. All Engines feature our heavy duty C355 Castings and Dynamic Balanced Press Pin Crank Shafts. 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. These Engines are available in both Assemble Complete and Unassembled Long blocks.

The 4.400” bore 140" El Brutos® are engines that defy description to those who have not yet experienced this level of Horsepower & Torque. This is the correct answer for the customer who demands the highest performance available.

Rated Output: 170 ft/lb torque & 165 HP

For Ultima® Evo Engine Installation Manual Click Here

For Ultima® Evo Engine Dimensions Click Here

Download Ultima® Evo Engine Dimensions Click Here

For Ultima® Engines Displacement Codes Click Here.

  • SKU: 1
  • MPN: 298-243

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Please acknowledge that Complete Engine have a lead time of 2-3 weeks.
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