i have a 09 Fatboy


How would stock se 110 heads on a 96 to 103 conversion work?
would they bolt on?
would it be a good combo?
I have a chance to get a set for around 200 bucks

thanks

 

Buy them! Yes, they will bolt on.

That's a smokin deal.

Just make sure you buy pistons to compliment the 110 heads.

It would be money well spent to do the 103 as well. Shoot for 10.5 to 1 compression and hold onto your hat

 

Not 100% sure what the maximum lift is for the 110's but it would be safe if you stay under .615

 

I was talking to a local 1% er and he did a 110 heads with a 103 bore plus the timpken bearing up grade and improved oil pump and roller rockers on a 2010 fat bob and he sais its like 128 hp and pulls the front wheel on demand. Sounds like a real stump puller to me. Its what I would do if I had the coin.

 

i don't post much here, but it seems to me that 128hp is a bit much for those mods. of course i don't know cam choice etc.

 

If you use a conventional piston with a bump on it, you'll need to trim about .050" off the pushrod side, of the dome, if surfacing the head to support a cam that'll get a 103-107" to have the intestinal fortitude to show some good power.
Already been there with this.
Scott

 

Head work and intestinal fortitude!!!

Cheers!

 

09B29,

Update on this build? Did you do it? I am stumpped on a build of my own.

 

You will need to do valve relief clearancing likely on both sides especially if the heads get milled. This is NOT a plug and play deal and in many cases the OEM head ported is a better choice IMO.

 

Those heads can really move air, and pull a good number, but on a smaller powerplant, such as a 103", the all-important, low end torque can be VERY easily compromised.
Scott