117 to a 124

[gnturboray]

I've been pricing a set of the CNC performance heads for my 117" in my 05 Chopper DT. After looking around and pricing the heads I'm leaning towards swapping out the 117 to a new polished S&S 124".

My 117 motor is stock with an Andrews 640 cam and 12K miles and runs strong with 124whp. I know the 05 EPA heads are choking the HP numbers.

Basically I'm looking for just the 124 motor only, I'll use all my upgraded parts and accessories and I'm hoping for around 145 to 150whp. I have the S&S Super G with ThunderJet with matching intake, S&S IST ignition and the S&S dual air intake.

Question is what could I get reasonably for my 117 with or without the current cam.

I'd like to hear from you guys on this whether I should go this route or continue looking at heads.

 

[KaptinAmerika]

That's what I did and I would do it again in a second.
I've seen 117s going for around 3400.

 

[Diesel Dan]

Dude if you wanna go big S&S has a 145 inch Mega Monster available!!!!! Thats gotta have some serious UMPHF behind it!!!!!!!!!

 

[Viking]

How much would those heads set you back?

 

[Bobby Schulz]

I feel a transmission rebuild in the near future
Call me for the build when needed

 

[wyatt580]

Can ya rebuild one to take that hp ?????

 

[Bobby Schulz]

Depends on a few things like traction,torque band,weight of the rider etc.

 

[RCAdd1ct]

117 intake will need to be replaced with a 124 specific part.

 

[dingo]

Would a conversion to chain drive be needed and -- to supplement not highjack this thread -- does anyone know the limits of our stock belt drive setup?

 

[RCAdd1ct]

Would a conversion to chain drive be needed and -- to supplement not highjack this thread -- does anyone know the limits of our stock belt drive setup?

I think it is all about how you ride and how you build the motor.

HP does not need a chain. Torque needs a chain. Even if you have a 107, but it is built for torque not HP it may need a chain.

Same thing with riding style. If you are a wheelie every light type, you might need a chain....even stock.

No matter what look at the big picture. Parts will slip or break. Your weakest link will move as you fix one problem.

A slipping belt might be a cheaper acceptable cause than snapping the transmission shaft.

 

[BBChopper]

I feel a transmission rebuild in the near future
Call me for the build when needed

 

[RubWhore]

I think it is all about how you ride and how you build the motor.

HP does not need a chain. Torque needs a chain. Even if you have a 107, but it is built for torque not HP it may need a chain.

Same thing with riding style. If you are a wheelie every light type, you might need a chain....even stock.

No matter what look at the big picture. Parts will slip or break. Your weakest link will move as you fix one problem.

A slipping belt might be a cheaper acceptable cause than snapping the transmission shaft.

You are so right!!!