Engine Specs.

UltimaŽ 80" Engine

The 80 C.I. Ultima engines are designed to provide equal life and better performance
than the OEM engines thay replace. They have combined proven OEM parts with their
own high quality components replacing the weaker items of the OEM engines,
insuring a problem free long engine life.

We think that these engines are the smoothest V-Twin engines available in the industry
due to their exclusive dynamic balancing methods and are backed up with a 12/12 warranty.
Assembled by professionals, all engines come pre-run.

Bore 3-1/2" Stroke 4-1/4"
Piston: Cast Compression Ratio: 8.5:1
Rated power: Rear Wheel Horsepower 75 Torque 85 lbft.
Camshaft: Crane 316 - Lift .490", Duration:242 Intake 252 Exhaust
Pushrods & Valve Springs: Crane
Nose Cone/Oil Pump: OEM H-DŽ Parts
Carb: S&S "E" 1993 & later
Chrome rocker box, tappet block, nose cone Polished oil pump on cast case
Black powdercoat on black cases

CASE FEATURES:
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 steel allen head case bolts.
Close machining tolerances. Made from prime C335-T6 aluminum that is superior in strength to A356.
Styling and cosmetic machining for a sharp custom look.

CRANKSHAFT:
Forged 4140 Steel. Dynamic balanced for the smoothest running engines in the industry.
Light weight high-performance H-Beam rods. Jims machining shafts and pins.

CYLINDER:
UltimaŽ 3-1/2" bore heavy liner. Cast Pistons

HEADS:
H-DŽ Castings. Black Diamond valves: 1.840 Intake, 1.615 Exhaust. Crane valve springs.

UltimaŽ 96" Engine

The 96 C.I. Ultima engines offer the best bang for the buck of any engine currently available.
They are designed to provide equal life and better performance than the OEM engines thay replace.
They have combined proven OEM parts with their own high quality components replacing
the weaker items of the OEM engines, insuring a problem free long engine life.

We think that these engines are the smoothest V-Twin engines available in the industry
due to their exclusive dynamic balancing methods and are backed up with a 12/12 warranty.
Assembled by professionals, all engines come pre-run.

Bore 3-5/8" Stroke 4-5/8"
Piston: Forged Compression Ratio: 9.8:1
Rated power: Rear Wheel Horsepower 100 Torque 105 lbft.
Camshaft: Midwest 520 - Lift .520", Duration:262 Intake 272 Exhaust
Pushrods & Valve Springs: Crane
Nose Cone/Oil Pump: OEM H-DŽ Parts
Carb: S&S "G" 1993 & later
Chrome rocker box, tappet block, nose cone Polished oil pump on cast case
Black powdercoat on black cases

CASE FEATURES:
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 steel allen head case bolts.
Close machining tolerances. Made from prime C335-T6 aluminum that is superior in strength to A356.
Styling and cosmetic machining for a sharp custom look.

CRANKSHAFT:
Forged 4140 Steel. Dynamic balanced for the smoothest running engines in the industry.
Light weight high-performance H-Beam rods. Jims machining shafts and pins.

CYLINDER:
UltimaŽ 3-5/8" bore heavy liner. Forged flat top Pistons

HEADS:
H-DŽ Castings. Black Diamond valves: 1.840 Intake, 1.615 Exhaust. Crane valve springs.

UltimaŽ 113" 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 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, and 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 their engines are dynamically
balanced using proprietary methods to provide the smoothest running engines on the market
and now with their new high flow cylinder heads these engines now can boast the
most powerful engines on the market as well!

Bore: 4.000" Stroke: 4.5"
Piston: Forged Compression: 10.2:1
Rated Power: 125RW Horsepower 125 LB FT Torque
Camshaft: 264 Duration .625" Lift
Pushrods: Crane
Valve Spring: Ultima
Chrome Nose Cone/Rocker Boxes Billet Oil Pump/Tappet Blocks

CASES:
Made in the USA 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 machine tolerances.
Made from prime C355-T6 aluminum that is superior in strength to A356
Styling and cosmetic maching for a custom look

CRANKSHAFT:
Forged 4140 Steel. Dynamic balanced for the smoothest running engines in the industry.
Light weight high-performance H-beam rods. Jims Machining shafts and pins.

CYLINDER:
C355-T6 Casting
Cast in heavy wall liners will not move.
Liners are Centrifugly Cast with Graphite impregnated Nickle for high durability.
All Fins are machined for an excellent cosmetic appreance.

HEADS:
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
Manganeze Bronze guides High Silicon WireValve Spring w/ Chromoly Retainer

UltimaŽ 127" 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 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, and 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 their engines are dynamically
balanced using proprietary methods to provide the smoothest running engines on the market
and now with their new high flow cylinder heads these engines now can boast the
most powerful engines on the market as well!

Bore: 4.25" Stroke: 4.5"
Piston: Forged Compression: 10.2:1
Rated Power: 140RW Horsepower 140 LB FT Torque
Camshaft: 264 Duration .625" Lift
Pushrods: Crane
Valve Spring: Ultima
Chrome Nose Cone/Rocker Boxes Billet Oil Pump/Tappet Blocks

CASES:
Made in the USA 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 machine tolerances.
Made from prime C355-T6 aluminum that is superior in strength to A356
Styling and cosmetic maching for a custom look.

CRANKSHAFT :
Our 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 7.7" 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.

CYLINDER:
C355-T6 Casting
Cast in heavy wall liners will not move.
Liners are Centrifugly Cast with Graphite impregnated Nickle for high durability.
All Fins are machined for an excellent cosmetic appreance.

HEADS:
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
Manganeze Bronze guides High Silicon WireValve Spring w/ Chromoly Retainer