Any one use these? Doing a 124 dealer said they are the next best thing.Sending crank to darkhorse, just want to do it right the first time.

 

I have used them.

If I were doing the build you are doing, I would use Axtell 4.125" jugs & pistons instead.

I have bottom end in my 120 that John @ Darkhorse setup. You will like it!

btw - my 120 does not have the Millenium jugs.

 

Axtell

 

Yup, Axtell only.!

I had the rev perf cyls for 5600 miles. They than lost compression and burned oil....