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Premium Member
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2,108 Posts
Discussion Starter #1 (Edited)
Man, I almost couldn't believe it-this new HD motor looks like a home run.
10.5 CR out of the box for pump gas, top of the line parts with a strong bottom end, almost pro level heads, 135 HP (and more with the optional 12-1 pistons), and a price point that is just incredible. Available as a complete crate motor from certain dealers for under 5k with discounts plus requires separate purchase of appropriate Screamin’ E agle
throttle body, high-flow injectors and a high-performance
clutch upgrade. Just add your choice of race exhaust, highflow
air cleaner, and tuning. ...then smoke all your friends...

I have been an S&S guy for years, but geez, this thing just rocks...

Screamin’ Eagle® pro SE 20R High-
Performance Crate Motor
This track-ready 120 cubic inch Screamin’ E agle® Crate Motor
is waiting to provide a racing enthusiast the opportunity to
go racing at an affordable price. This engine is designed for
bolt-in installation in the Original Equipment-style chassis
of your track bike. No special fabrication or engine-mount
relocation is required. The crankcase, cylinders and heads
are painted black, and feature machined aluminum highlights
and chrome covers for a stunning “show-and-go” look.
When equipped with appropriate high-flow throttle body
and injectors, an open air induction, and tuned exhaust, this
engine is capable of producing a reliable 135+ horsepower
at the rear wheel.
Hand assembled alongside Harley-Davidson’s production
Twin Cam engines at the Pilgrim Road Engine Plant in
Milwaukee, these race-use engines feature only the finest
Screamin’ Eagle components:
• 4.060" big-bore cylinders.
• 4-5/8" stroke premium forged flywheels.
• 10.5:1 high-compression nickel-plated forged pistons with
T eflon coated skirts.
• Titanium SST piston rings.
• SE-266E high-lift cams.
• Perfect Fit push rods +.030.
• SE high-performance lifters.
• CNC-ported MVA heads with automatic
compression release.
• Machined lower rocker boxes for valve
spring collar clearance.
• Factory-machined engine cases.
• Unique piston oilers for stroker clearances.
• Screamin’ Eagle inner crankcase cam needle bearings.
• Lefty high-performance crankcase output bearing.
• High-performance torque response engine compensator.
• SE Performance Spark Plugs.
For race application only.

19220-11 Black & Chrome. $5,495.95
Fits ’06-later Dyna® and ’07-later T ouring models.

19206-11 Black & Chrome. $5,795.95
Fits ’07-later Softail® models.
 

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Premium octane member
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7,381 Posts
Cheap too..Has some really strong points and some weak points to it. The new hurricane heads look interesting with the new port shapes and valve sizes..Said this 120 will see 150hp with the hurrican heads and 12 to 1 piston kit...i'll wait for george to try first...lol

Paul, wonder how accurate their head flow is?
 

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Premium Member
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2,108 Posts
Discussion Starter #3
Yeah, not sure but I bet it's pretty accurate-those heads have to flow like a MOFO to put out 135 plus hp at 10.5-1 out of a a 120".
I'd like to see a welded crank and Timken but at the complete crate motor under 5k at certain dealers...damn. That's Chinese Rev-Tech crap territory prices!
 

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174 Posts
The dealership where I work put one of these engines together from a kit and installed it in a trike of all things. While it certainly wouldn't have been my choice of combinations for a trike, it is extremely well mannered and a joy to ride. Very nice looking piece and gobs of power. Sure would be fun in a Dyna!!
 

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5,156 Posts
Some unresolved information in my mind
The literature says 10.5/1 and the MVA heads.
So is that the combo that made 135?
What about these Hurricane heads and 12/1.
I see there is another even hotter cam too with near 700 lift.
Didn't they get the memo from the world about the cranks? Just kidding
I would like to know what is the real scoop here.
Still seems like a possible good deal if they hold up
 

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Premium Member
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253 Posts
I looked at these when the Dyna version appeared earlier in the year. Thought with their(HD) setup piston speed could be an issue. Ended up just buying the cases, bored to accept 4.125 Axtells, went the slightly shorter 4.5" S&S trued and welded crank and 2 lefty's.
Now there's an A and B version I reckon punters will line up for 'em, wonder if they have the 2011 rod and camplate setup.
 

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FNG
Joined
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1,132 Posts
I wonder how many of those parts are made state side. I'd love to know how one of those would perform with proper head work and 12:1compression with the late closing SE cam.
 

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Premium Member
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373 Posts
Yeah Don...i hear ya..Its like they watch what we do..then try to copy it, but do it the cheap way out.
Gotta agree 100% with that!

I saw one of the early HD120 kits ~ for the Dyna's.

The guy bought the complete kit, including new cases. When he first fired it up, it had a serious & solid knock.

I proposed, on his description alone that the piston skirts might be hitting the case at the bottom of the spigot bore. When he pulled it apart, that's EXACTLY what it was ~ even with the HD 120 cases.

I knew that because we discovered the same issue during mock-up of my old HQ120 (same dimensions). The difference was that we found and fixed them before the motor ever went into the frame.

The MotherShip replaced his whole kit, no charge... just his labor.
 

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Premium octane member
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7,381 Posts
Gotta agree 100% with that!

I saw one of the early HD120 kits ~ for the Dyna's.

The guy bought the complete kit, including new cases. When he first fired it up, it had a serious & solid knock.

I proposed, on his description alone that the piston skirts might be hitting the case at the bottom of the spigot bore. When he pulled it apart, that's EXACTLY what it was ~ even with the HD 120 cases.

I knew that because we discovered the same issue during mock-up of my old HQ120 (same dimensions). The difference was that we found and fixed them before the motor ever went into the frame.

The MotherShip replaced his whole kit, no charge... just his labor.
That's funny(well not really) Phil. Nothing like us backyard shops leading the way...


I personally cant wait until some of the (worse, not all are bad) dealers slap together a race kit with these huge valves, 12 to one compression, and throw a canned pos sest map on it..hehe...i can hear the detonation from my lazyboy. On the plus side, most of my builds are fixing ones others fugged up, so i will be busier.. Its a well know fact the fuel is getting worse and now they up the compression?
 

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Premium Member
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241 Posts
Who is selling them, I may want to drop one in my street glide to see how long they last at that price
 

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155" R&R TwinCam
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3,437 Posts
Almost the same money I paid for my S&S 124" unassembled 8 yrs ago.Almost hard to believe will be watching though need a motor to finish a bike.Hoping to hear more of what you guys might have to say about this seemingly good deal
 

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2,548 Posts
Somebody buy one and see if it falls apart like the H-D/Jims 120. :hystria::hystria::hystria:
 

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FNG
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1,132 Posts
I wonder if the release of this motor has anything to do with the SE race program, if it does, perhaps there is more than one way to get things done; meaning, and this is not a position I could support technically, but maybe there is more to this long stroke and light piston thing than we think.

The general trend has been toward larger bores and shorter strokes in motors intended for flogging on the track, but those “Hurricane” heads have monstrous valves for such a small bore. I know there is no real comparison, but the general geometry and options in this motor remind me of an RB Racing 113, which uses B1 heads, and high lift cams.
 
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