Ultima®
El Bruto Engines Big
Inches
Economy
backed by Racing Technology
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. . . . . . . ® . . . . . . . A Barrel-Chested Brute of an Engine to POWER your Bike
El Bruto™ Series100ci 4" bore Engines 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. Product Specifications/ Highlights 100 Ci Bore: 3.875" Stroke: 4.25" Piston: Forged Compression: 9.6:1 Rated Power: 115 RW Horsepower 115LBFT Torque Camshaft: 248Duration 625lift Pushrods: Crane Valve Spring: Ultima Chrome Nose Cone/Rocker Boxes Billet Oil Pump/Tappet Blocks Cases See description here >> CASES << Crankshaft See description here >> STROKER << Cylinder C355-T6 Casting Cast in heavy wall liners will not move Liners are Centrifugally Cast with Graphite impregnated Nickel for high durability 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 than most Evo style heads for cooler running 2.100 Stainless Int Valves 1.700 Stainless Ex Valves Manganese Bronze guides High Silicon Wire Valve Spring w/ Chromoly Retainer
Styled
Machining & Clean Custom Looks | ||||||
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