Ultima El Bruto 107ci Evolution-Style Engine Polished Finish

El Bruto Series 107ci 4" bore Engine
High Polished Finish

Notice! THIS ENGINE IS IN STOCK AND WILL SHIP SAME DAY YOUR PAYMENT ARRIVES

NOT LIKE OTHERS THAT ORDER AFTER THEY HAVE YOUR MONEY

COMPLETE WITH CARB IGNITION MSO AND WARRANTY!!

FACTORY ASSEMBLED!*

*Notice: This engine is FACTORY ASSEMBLED. Some of our competitors, especially on eBay, offer engines that are self assembled from spare parts at a lower price. Do not take a risk on a non-factory assembled engine!
Ultima is now offering the new " El Bruto" series engines which are designed to provide our customers with a USA built High Performance engine that was priced to be the best value of any engines now on the market. Ultima's commitment engineering excellence and competitive pricing brought El Bruto to life with a completely new design set of castings emphasizing performance, reliability, and value.

All of the castings in these Engines are poured in US foundries and are based on all new CAD designs cast from C355 Aluminum a common US Military alloy known for its stability over multiple heat cycles. The engine components are machined on state of the art CNC equipment for guaranteed dimensional accuracy and repeatability. All of our engines are dynamically balanced using proprietary methods to provide the smoothest running engines on the market and now with our new high flow cylinder heads these engines now can boast the most powerful engines on the market as well!!

We think that you will agree these engines are the best value anywhere.

True to their name, the 4" bore 107 inch El Bruto
Engines are horsepower extraordinaires. They are the most powerful EVO configuration of these sizes.
These brutes have features which insure long life and pure riding enjoyment for those who need ultimate performance.
Born In The U.S.A.
Rated Power
107 C.I. / 115 HP
with 120 LB FT Torque.

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Product Specifications/ Highlights 107 Ci

Bore: 4"
Stroke: 4.25"
Piston: Forged
Compression: 10:1
Rated Power: 115RW HP
120 LB FT Torque
Camshaft: 248 Duration .625 lift
Valve Spring: Ultima
Chrome Nose Cone / Rocker Boxes
Billet Oil Pump
Chrome Tappet Blocks
Ignition included on assembled engines
Mikuni 45mm HSR Series Carburetor

El Bruto Series
Ultima 4" Bore 107 CI Engines & Long Blocks

Ultima is now offering the new El Bruto Series Engines which are designed to provide our customers with a U.S.A. built High Performance engine that is priced to be the best value of any engines now on the market. Midwest's commitment to engineering excellence and competitive pricing brought El Bruto to life with a completely new designed set of castings emphasizing performance, reliability, and value.
All of the castings in these engines are poured in U.S. foundries and are based on all-new CAD designs cast from C355 aluminum, a common U.S. military alloy known for its stability over multiple heat cycles. The engine components are machined on state of the art CNC equipment for guaranteed dimensional accuracy and repeatability. All of our engines are dynamically balanced using proprietary methods to provide the smoothest running engines on the market and now with our new high flow cylinder heads these engines now can boast the most powerful engines on the market as well!! We think that you will agree these engines are the best value anywhere. 12 /12 warranty. d.o.p.

Case
Made 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.

Crankshaft
Forged 4140 Steel. Dynamic balanced for the smoothest running engines in the industry. Light weight 7.44" high-performance H-beam rods w/.792" fins. Jims Machining shafts and pins.

Cylinder
C355 Casting. Cast-in liners will not move. All fins are machined for an excellent cosmetic appearance.

Cylinder Head
C355-T6 Casting. All fins are machined for excellent cosmetic appearance. Twin Cam Styling. 30 % More fin area than Evolution style heads for cooler running. 2.100 Stainless Int. Valves. 1.700 Stainless Ex. Valves. Manganese Bronze guides. High Silicon Wire Valve Spring with Chromoly Retainer.

Carburetor
Ultima® is proud to introduce our performance carburetors, directly interchangeable with S&S;® Super G Carburetors. Ultima® carburetors will accept S&S;® jets and S&S;® bolt pattern air filter assemblies.
Patented design improvements - a relocated accelerator pump nozzle for increased throttle response and THUNDER JETS are a bolt on! Simply remove the plugs and screw in the Thunder Jet. No expensive machining required!