I have a 2008 Softail Springer Screamin Eagle CVO FXSTSSE2. I’m wanting to do some DIY performance upgrades. To that end, I bought a set of SE 110 cylinders with the intention of having them bored to 4.06”, and I bought a set of SE 4.06” pistons, 21915-08*. I bought the pistons on eBay solely based on size. Subsequently I obtained a Screamin Eagle Performance Parts catalog from a local H-D. The catalog states that those pistons “will not work CVO models”. Can anyone tell me why that is?
In the future, l’ll be having some heads ported, and when I get the boring & porting done, I’ll input my volume numbers into a compression calculator to determine which cams I want to use.
My immediate concern, though, is whether, or not, I’ll be able to use the Pistons I have, and can’t find any defined reasons why not.
Regards,
Andy