103 to 120R ???? - Road Glide Forums
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post #1 of 23 (permalink) Old 07-19-2014, 07:50 AM Thread Starter
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103 to 120R ????

Has anyone changed out their 103 with a 120r? Can you do normal riding with 120r? What else will be required to complete the changeout? Pros/cons?


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post #2 of 23 (permalink) Old 07-19-2014, 08:05 AM
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I'd look at the S&S 124 instead. For about a grand more you get a better built engine IMO.
Yes you will need to upgrade a few other driveline componets . You should have no problem doing normal riding , but why would you want to ? .

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post #3 of 23 (permalink) Old 07-19-2014, 08:09 AM Thread Starter
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Just thinking about doing it. No particular reason. Something different plus I heard a CVO with one. Sounds outstanding !!


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post #4 of 23 (permalink) Old 07-19-2014, 08:17 AM
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Quote:
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Just thinking about doing it. No particular reason. Something different plus I heard a CVO with one. Sounds outstanding !!


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I didn't mean why would you want to put a bigger motor in, but why would you want to drive normal with a bigger motor.

2010 FLTRX , Stage 1, 13" Madstad, Mono tubes, SuperShox, Heritage style bars. Alpine CDE-HD149BT,Soundstream Picasso Nano Series PN4.520 , 5X7 and 6.5 Infinity Kappa speakers
If I have to explain ,you wouldn't under stand anyway.
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post #5 of 23 (permalink) Old 07-19-2014, 08:32 AM
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I'll tell you next week. I'm going from a 103 to a S&S124LC. I'm pulling out my motor this weekend. My 124 is on it's way.

The 120 has no warranty and comes with a pressed crank and crappy lifters. IMO it isn't any better than a 103.

My buddy got me a hell of a deal on my 124 PM me and I'll give you his number for his shop.
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post #6 of 23 (permalink) Old 07-19-2014, 08:49 AM Thread Starter
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Thx for clarifying. I want the bigger motor but still want to ride 15k+ a yr.


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post #7 of 23 (permalink) Old 07-19-2014, 08:58 AM
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Thx for clarifying. I want the bigger motor but still want to ride 15k+ a yr.


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That won't be a problem at all. There are guys out there with 85k+ miles on their 124 crate motors.
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post #8 of 23 (permalink) Old 07-19-2014, 09:04 AM Thread Starter
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That won't be a problem at all. There are guys out there with 85k+ miles on their 124 crate motors.

Cool. Thx for the info


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post #9 of 23 (permalink) Old 07-19-2014, 10:21 AM
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120 disappointment

Friend with more $ than sense bought 120r. No where near hp claims. 5k plus thrown away. My 88 to 98 Dan Vance build was close in hp & torque for half the price. 120r is another detuned HD motor that needs tweaking to scream. Friend sold bike and lost his a$$. You have all been warned.
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post #10 of 23 (permalink) Old 07-19-2014, 10:26 AM
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the S&S 124 LC is definitely the better choice , is on my list no doubt ..

JtB

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