So I am considering an upgrade. Currently on a 2010 Road King Classic, has Stage 1. I know myself well enough to understand that instead of doing upgrade after upgrade in chasing more HP/ torque, I should just buy a new motor. The costs of the 111 & 124 from S & S are about the same. I am not looking to build a monster motor, whatever I choose will remain stock. I was going to trade the bike, but was not impressed with both the 103 and 110 I test drove. Plus, I love the RKC. Have any of you done this or thought about it? If so, what costs can I expect to have associated with swapping the motor. Any other add ons I will need? Thanks for any input...

 

If the cost difference between the two crate motors being about the same then nothing beats displacement. You are still looking at new exhaust (if going with 124 or pending on what your running now), clutch, compensator, throttle body, injectors, air cleaner, tuner/ possible dyno tuning pending on tuning device and labor unless your turning your own wrenches which all adds up quickly.

You can get the S&S 124 or the T111 with 585 cams easy start gear drive cams. From what research I have done, if you are turning your own wrenches the new lower end on the T2 cases need external oil lines drilled (S&S has a jig to complete task/ another expense).The million dollar question is how much performance is enough? Only you can answer....

 

124.
We have a client in Syracuse, NY, that has north of 130,000 on his carbed 124" engine.
Does not do burn outs, or hot-dog it, but uses the power when need.
Scott

 

There are two versions of the 124", including the low CR version that RottnRam refers to, with the 'touring' 585 cams. I have the 585 in my S&S 107" (replaced by their current 111") and if I was doing this again, that 124" would be my choice! Of course an alternative option is the recently announced 143"........

 

I have had both - get the 124 with the 585 cams - save yourself some money - learn from my experience - the 111 is a perfect motor - the 124 is all that plus it runs just as cool as the 124 - much coller than my built 107

 

Old thread, but did you mean to say that the 124 with the 585 cams runs just as cool as the 111? That's what I assume, but you know what happens when you do that.

 

If you bore your existing cases, and use an S&S crank/cylinders, etc, along with the HD type cam plate/pump set up, you can use an S&S cam if desired, but you are not "locked" into the use of S&S cams if using their crate engines, as those have the S&S gear drive/oil pump combo.
That opens other doors.
Scott

 

ide build your existing motor to 124",for one you retain your VIN#`s and 2,you can have it built right to your riding style & expectations

 

I wish that I knew enough about the relative merits of each crank, cylinder, piston, cam plate/pump, and cam. I just don't. Long learning curve for me, I'm sure. What are the disadvantages of the S&S gear drive/oil pump combo -- or perhaps better asked, what are the advantages of the alternatives?

From what I've been reading, it sounds like either the T111 or low compression T124 would suit my riding style very well. I'm sure a motor could be built to suit me even better, but I don't have a local resource that I have confidence in taking the time with me to walk through the various options and their relative merits. I have read enough to understand that building a motor means getting the right combination of parts that work well together. What I don't understand is how to know what that combination is.

Any suggestions?

 

Why would anyone want a 111 over a low comp 124? Not much difference in cost if any at all. Low comp 124 is reliable and well behaved