Harley Davidson Forums

Harley Davidson Forums (https://www.hdforums.com/forum/)
-   Touring Models (https://www.hdforums.com/forum/touring-models-11/)
-   -   What's the largest Big Bore kit without crankcase modding? (https://www.hdforums.com/forum/touring-models/1058590-whats-the-largest-big-bore-kit-without-crankcase-modding.html)

da Celt Jul 10, 2015 09:15 AM

What's the largest Big Bore kit without crankcase modding?
 
Hi all,
Does anyone know the largest CID you can get as a bolt on piston/cylinder package without having to have the stock 2007 TC96 crankcase bored for larger sleeves?

TIA,
Celt

just plain john Jul 10, 2015 09:20 AM

The next size up is a 103. For a big inch gain you need a stoker crank.

LazySundays Jul 10, 2015 09:32 AM

Hillside, Fuel Moto, S&S and I'm sure a few others have 107" kits that will bolt right up. I haven't heard of anything larger without going to thicker cylinders and having the cases machined.

jrpetrie Jul 10, 2015 10:12 AM

I have a 107

da Celt Jul 10, 2015 10:32 AM

Many thanks! So when folks DO decide to have the case modded and a big job done, do they crate and send the block or just drive to a service center and have it all done? (don't know that I'd be able to afford the "full service" option...)

Weavr99FLHT Jul 10, 2015 10:59 AM

Whether you go 103 or 107, add compression releases. 96" did not come with auto CR. Fuel Moto offers ( and recommends ) manual CR HD heads. Or you can go auto from HD - harness is plug in, have the heads drilled.

Sent from my iPhone using IB AutoGroup

da Celt Jul 10, 2015 02:55 PM


Originally Posted by Weavr99FLHT (Post 14193658)
Whether you go 103 or 107, add compression releases. 96" did not come with auto CR. Fuel Moto offers ( and recommends ) manual CR HD heads. Or you can go auto from HD - harness is plug in, have the heads drilled.

Holy crap! So for my TC96, I'll need not only the Big Bore kit but also have the heads machined for CR? Sounds like i just need to drop another 15 lbs instead... By the time you run all the costs on all the upgrades, I'm better off getting an S&S 124 cid!

SBates08 Jul 10, 2015 03:15 PM


Originally Posted by da Celt (Post 14194158)
Holy crap! So for my TC96, I'll need not only the Big Bore kit but also have the heads machined for CR? Sounds like i just need to drop another 15 lbs instead... By the time you run all the costs on all the upgrades, I'm better off getting an S&S 124 cid!

Now your thinking!!!! 124 gets my vote.

2010 Limited with some stuff

dodger413 Jul 10, 2015 03:21 PM

better get ready to put out more bucks than you can ever imagine.

my buddy put an S&S 124 in (unbelievably professional org)

next he needed the rivera belt drive.

then he needed the baker six speed.

chain rear drive.

by the time he was done, it was a beast, but far more money than he planned (luckily he had lots of it )

bigskyroadglide Jul 10, 2015 03:46 PM

Manual CR are the way to go. Relatively inexpensive in the grand overview of the build.

Taking a 96 to a 107 is easily a $2500 job if someone else does it, maybe less if you do yourself


All times are GMT -5. The time now is 07:08 AM.


© 2026 MH Sub I, LLC dba Internet Brands