I have a 01 fatboy flstf w/ an 88. I want to change to a 103. What do I need to make that happen ?

 

I'm no expert but I think 103 is out without doing a stroker crank so if you do that go 107....I think the way to go without having to split the cases is to go to a 96 c.i. since your bike is an 01 it has the better lower end (crank/bearings) I'd just do the piston jug swap to a 96 an have the heads done.

 

Need a stroker crank and stroker pistons. 95" and 103" have the same bore. The stroker pistons have the pin bore located in a different location.

88" bored out = 95"

Stroker crank bored to 88" bore = 96"

Stroker crank bored to 95" bore = 103"

 

Isn't there a 98 kit available. Also may want to look up the HIPPO build. There was a thread not long ago where a forum member basically did a budget hippo build.

 

S & S makes a 100 inch kit for the 88 that just involves the pistons and jugs. Don't of anyone that has used this kit or what kind of results you can expect.

 

I just purchased an '05 Springer and it has an S&S 98 kit in it...you can look at their site and see what is available...

https://www.sscycle.com/products/98-...silver-finish/

 

Would also recommend that if you going with a big bore kit you should also get the heads ported to take full advantage of the bore kit.

 

 

That was genuinely LOL funny.

 

I have the S&S 100" kit and it is great, lot's of power.