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[kreed2007]

A buddy of mine is planning to put an S&S 10.8:1 T124 Motor with the 66 mm throttle body in his Utlra Classic. Has anyone
had any experience with this motor? Thanks all

[BigLew]

Got one in the 09, but I'm not going to be much help. I have a blower on mine.

BigLew

[pkl]

You can bring on envy, or fear, and tell us what you have with the blower.

[RayG]

I would not expect to just drop in a 135 HP motor in a bike that has drive components that are having a hard time holding up to motor that is designed for a motor that puts out 80 HP plus or minus.  I had the S&S 124" installed two winters ago and have put over 20,000 miles on that motor,  plan on making sure your primary & drive components are beefed for the additional TQ.  I would recommend the Baker trap door assembly and possibly a look into the Baker transmission rebuild kit if the bike has high mileage.  Not trying to put a scare into anyone,  you just can't drop in a powerful motor in any vehicle that is designed for far less without expecting to be prepared for it.  Driving conditions will have the final say in what is needed for reliability. 

If you want a list of parts I would make sure your compensator is upgraded and I would strongly recommend using GMR's Compusave for additional lubrication for the compensator.  You will need a stronger clutch as the stock one will not likely hold up very long.  If you do a search on this site, you will find a vendors Recipe for the 124" install.   Overall I have been happy with the performance from the 124" install.  I would also consider using Steve's (GMR) exhaust recommendation consisting of the Crusher Mellows for a nice sound without sacrificing any power.   I'm sure I missed some things and these are just my opinions,  I'm a bike owner not a mechanic.   

Good luck and hope your friend enjoys his new motor.   

Ray G.   

[barrhill]

your in fort worth go see Steve at GMR he has one in his own bike and while your there see how he is coming along on my bike

[INDEPENDENT_1]

No issues with any of the T124's whatsoever. We're doing 2 of them right now because of that reason. I don't think you'll have any regrets.

[HILLSIDECYCLE.COM]

Plenty of power on tap, but the there are several cams that'll produce better delivery than the .640.
We've built quite a few over the years.
Have a client in Syracuse, NY, that has over 100,000 on his 124", for instance.
Scott

[GMR-PERFORMANCE]

A buddy of mine is planning to put an S&S 10.8:1 T124 Motor with the 66 mm throttle body in his Utlra Classic. Has anyone
had any experience with this motor? Thanks all

Come on by be happy to let you take my RG for a spin.  Runs well.. lots of great builds from a 110 to a 113..  though as well.  Swapping cams in the 124 is limited to the S&S cams though , or swap out all of the cam chest parts.  I did a overlay of a 124 and 113 in some other post .  My riding style,... the 640 fits well.  it may not be a fit for your riding style.  The 585 may be the ticket . Who knows but the test ride is your if you want it.

Who knows maybe Barrhill will let you take his little 113 for a spin..       

[prodrag1320]

We do a lot of 124"s.from mild to very aggressive.(my personal bike has one)feel free to pm me with any questions

[kreed2007]

Thanks everyone, This is exactly what we were looking for. We do plan on talking with Steve at GMR. I know my
buddy is planning to put miles on this bad boy too.