110"/117" Bolt On Kits

[Mountainman streetbob]

We are putting together a 110 with our CNC heads our 600 cam and a 58 t/b  This kit in the 107 makes 130/124  so I am looking forward to seeing how this comes out

How did the 110 with your cnc heads and 600 cam and se58tb turn out???

Sounds like a great combo...

[HD/Wrench]

HA HA I am very back logged with work. I have all the parts here just some other jobs in front of it.  But once done I will post it up.

[GRam]

Are the pistons still down in the bores some? Have a 117 kit on order, and with my current MVA heads having a 95 cc chamber, and my Tman 625 cams, corrected #'s
are a tiny bit low I think? Like 9.5-1 and 194.5 ccp. That's with a 0.030 hg. Thinking it's pretty close, but close enough?

But if pistons were zero deck, probably be almost perfect?

[rockytop117]

Are the pistons still down in the bores some? Have a 117 kit on order, and with my current MVA heads having a 95 cc chamber, and my Tman 625 cams, corrected #'s
are a tiny bit low I think? Like 9.5-1 and 194.5 ccp. That's with a 0.030 hg. Thinking it's pretty close, but close enough?

But if pistons were zero deck, probably be almost perfect?

if IRCC mine was .002 in the hole. It seems they vary as i've saw 4-5in the hole as well

[Tattoo]

Are the pistons still down in the bores some? Have a 117 kit on order, and with my current MVA heads having a 95 cc chamber, and my Tman 625 cams, corrected #'s
are a tiny bit low I think? Like 9.5-1 and 194.5 ccp. That's with a 0.030 hg. Thinking it's pretty close, but close enough?

But if pistons were zero deck, probably be almost perfect?

if IRCC mine was .002 in the hole. It seems they vary as i've saw 4-5in the hole as well

we have seen the same thing.

[HD/Wrench]

Does it really matter if its 2 or 10 these engines are no where near that picky .. Just like the HG guys want this perfect squish. Its not magical, there is no change. I have tuned high comp engines that guys ran very thick gasket to lower the comp ratio it tuned just fine.. What about a dish piston.. There is very little area that is not well below zero deck..

Get it as close as you can with what you have 2 or 5 is not going to make any difference that you will ever feel seat of the pants

[GRam]

Thanks GMR, didn't think it was something that would leave me shaking my head over.
Although the flip side of my personality says it's the details like that, that make the difference
between a good runner, and a great runner..
This experiment is just to get me through the season, think Xmas will see Santa deliver that shiny 124 I
have been asking about for the past few years lol

[TorQuePimp]

Does it really matter if its 2 or 10 these engines are no where near that picky .. Just like the HG guys want this perfect squish. Its not magical, there is no change. I have tuned high comp engines that guys ran very thick gasket to lower the comp ratio it tuned just fine.. What about a dish piston.. There is very little area that is not well below zero deck..

Get it as close as you can with what you have 2 or 5 is not going to make any difference that you will ever feel seat of the pants

  As far as tuning goes maybe true....power production,not true in the least

A little bit of blueprinting or ordering components to make up the difference helps.

[HD/Wrench]

Sure increase in comp ratio will help , but there is no reason to worry about 2 or 5 .. You comp ratio gain is minimal and power ?? not enough to worry about ..  30 to a 40 gasket same comp ratio no another non issue.. Sorry but that is my opinion and I tune these almost every day .. Same fuel same heat and you can run the same timing . its not enough to freak out over..  Race car engine or some thing that is max effort that is another story ..

[TorQuePimp]

almost never see .002 in the hole.....its always more than that

  If you don't address the heads they can be 1CC or more different from one another.

  Some of the CVO heads are worse yet.

It all adds up and separates a good build from a  better one

[Tattoo]

A old engine builder once told me that running a .030" head gasket on a high compression engine as well as tithing up your "Squish" area will reduce the risk of spark knock. I run .030" HG on 99% of the builds I do at home and at the dealership.

[strokerjlk]

I have weighed them and they are very close to the same weight

We tore a kit down that had 7000 miles on it because of a little weeping around the base and the cylinders looked fine with no unusual wear marks. replaced the base o-rings and he was back on the road. we have another customer that has been drag racing his bike every Friday night with his 110" bolt on kit in his ultra low once again he has had no issues as of yet. The employee that we did the 110" upgrade over the winter with JC's heads is still trying to blow his up and now over 6000 abusive miles with not one issue.

Local dealer had one leak at the base. the tech told me there was a better updated O ring now. you heard anything about it Wes?

[Tattoo]

we have had only one leak and I will have to look into a "updated" O-Ring.

[Merc1100sc]

Maybe this has been mentioned before but is there a race version and a non race version of the 117 kit?
If so, what are the differences in the two?

[NHBagger]

A old engine builder once told me that running a .030" head gasket on a high compression engine as well as tithing up your "Squish" area will reduce the risk of spark knock. I run .030" HG on 99% of the builds I do at home and at the dealership.

Since this was brought up, what is the CR of the 110 kit with a .030?  I have seen 10.2, 10.5 and 10.75 for numbers?  In my case, talking wethead.  Curious as I will be running TTS100 cams, and not sure how much compression they can handle before the CCP gets too high.

[boooby1744]

A old engine builder once told me that running a .030" head gasket on a high compression engine as well as tithing up your "Squish" area will reduce the risk of spark knock. I run .030" HG on 99% of the builds I do at home and at the dealership.

My buddy once had .030 blow on a rear cylinder, made him a little wary. he prefers a .040 and will go to a .036 if he must.

[bwernicke]

I've got one of these kits installed with a dark horse bottom end. While riding from Chicago to Memphis my wife and I noticed a vibration in the footboard we have never felt in 80k miles of riding. By the time we got to a local Harley dealer we barely had any oil pressure.

The dealer was closing and would not even look at it. They are assuming the crank walked causing the drop in oil pressure.

The dealership that completed the build is on their way here with a loaner bike and will take mine back home. I'll update this thread as I hear back. Specs on my build can be found in the dyno forum.

I am pretty disappointed. I spent quite a bit on this build but I also appreciate the customer service from the Harley dealership that did the build. They are doing the right thing here for sure.

[Tattoo]

If Darkhorse did the crank Im willing to bet the crank didn't "walk" but stranger things have happened.

[Barrett]

Does Darkhorse secure all crank bearings or is it something you need to ask for? What year is your bike?

[bwernicke]

It's a 2009. Part of the work they did was a Timken conversion (I think).

[bwernicke]

Darkhorse Bottom End including the Following:

DH-2164-BRG BRG.SET, CONN.ROD ROLLER
DH-7670 T/C COMP. CONN. ROD SET
DH-HDPIN-A CRANKPIN,2-HOLE, CENTOLS.GR
DH-SC-B SERVICE CRANKSHAFT W/BAL
DHC-PP PRO PLUG CRANKSHAFT
DHC-RCSS CENTER OE SPR. SHAFT, 07+
DHC-WELD WELD CRANKPIN

That was the description of work done by dark horse. I'm not sure what all of those descriptions mean.
The oil pump that was installed by the dealership was from zippers.

[Tattoo]

did Darkhorse install the crank in the cases?

[bwernicke]

did Darkhorse install the crank in the cases?

I honestly do not know that information.

[K4FXD]

Can these jugs be bought separately? Will they fit the 88 CI cases?

4 inch bore 4 inch stroke. I know I'd need pistons for the stroke, reason for asking if the jugs are available.

[rigidthumper]

Can these jugs be bought separately? Will they fit the 88 CI cases?

4 inch bore 4 inch stroke. I know I'd need pistons for the stroke, reason for asking if the jugs are available.

Yes, not cheap tho. Wiseco offers a K1760  4"x4" piston assy that may work.