Ok engine Dr's... I have decided to build my 14' Street glides engine.(not me, but have it done) Here is the low down... I sometimes ride two up and I do long hauls. I want the most "reliable" powerhouse I can stuff under the tank. I ride the snot out of it! The 103 in it has full exhaust and a SEpro race tuner. It did 76/106 on the dyno. Not bad.. But I want more!

​​​​​​​ I know I can throw compression and ported heads and big cam and get 145 all day. I want to have the most reliable street engine that you guys think would be best. What's your opinions? I don't want to have to worry about hot starts or melt downs in traffic. Basically want the biggest , most powerful "street engine" .I have no problem cutting back on power and torque this time around.

 

Well if you think you can get 145hp out of a 103" all day, then go to that guy can do that and have him build you something, any size, cause he is a magician.

 

Best to do a mild compression 124. Simple as that. 11:1 static range on the proper cam would do it. Call Scott. He's done 19 of em this year already

 

I am gonna assume you were joking or don't understand V Twin street HP when talking about modding your existing 103" for 145 hp. You can do it, but it would be so costly, finicky and high strung that you would never want to tour with it. Bar hopper only...
Sounds like you like to really rip it-awesome...
How much do you tour? Every weekend, once in a while, or a couple trips a year?
If it's the last two, put a S&S 143" in it, or at least a standard (not LC) 124".
Or have a 124" built up using your existing cases.
Don't forget the extras. Clutch, intake, good tune, and possibly/probably other upgrades as well.

 

I guess budget is another factor (details!) You can get a s&s 124" LC installed with Bigger tb and injectors for around 8K.

 

build it 124".go on the mild side for reliability & good touring manners.you`ll still do around 130/135

 

Jody,
We just built another 124" using a T-Man 660SM.
Tame compression, easy starting....tuned here at 138/148..was making 140 ft/bs by 3000, and carried that well past 5000, as an example.
Dyno report on our company Facebook.
Scott

 

Joe you can do like I did for 120/120 and keep the 103 stock pistons an jugs or spend a bit more on a 117 which is what J&B just did and got 148hp and 145tq but thats not cheap. The 124" will not be cheap either so what's the budget ?

 

Yep.
141/144 from a 117".
Tuned at a shop in PA quite some time ago, using OE HD head castings.
LA HD in Lewiston, Maine has seen our 124"ers tapping on 150/150....pump gas, daily driver.
Last carbed 124" we did went 139/151, here,...........with an S&S .640, our Stage I S&S Heads, and V&H Big Radius pipes, of all things!
Dyno report on our Facebook.
Scott

 

if looking for reliability & a bike that will TRUELY be toured on,i wouldn't get caught up in big #`s.IMO,130-135hp & 135-140TQ is more than enough for a bike that will actually be able to run cross country with stock like dependability on the crap gas you will most likely encounter in some remote places