Head work

what will welded stage 4 cylinder heads add to a 96 bored to a 107 that has a dyno of 113.9 HP and 122 lbs of torque. Should I get more HP & Torque? Do they work better at low end or high end or all the way through?

are you talking about raised ports that have been welded to get air over the intake valve ?And if you push that 96 bottom end any more than what you are. you will shift those wheels and end up breaking that good running 107 you have know ! unless you plan on doing a timken bearing conversion i think you should leave it alone and enjoy your well running 107. and as far as a stage four raised intake ported head any time you get air and fuel over a well ported late model 7mm stem valve head they kick ass . talk TO KIRBY HE WILL TELL YA IF ANY BODY KNOWS HE DOES . VEE TWIN PERFORMANCE. LOOK HIM UP!

Ya might want to consider having that silly putty bottom end plugged and welded if you're putting out that much torque and looking for more...be an awful thing to spend a pile of money only to have the crank scissor on ya and take it all out...

This has nothin to do with answering the question But.


Know y'all have your way of buildin a engine. And I respect that.

I talked with a gearhead and a builder who races HD motors and under No circumstances will he take HD cases that are INA bearings and convert them to Timken.
He stays INA with the whole build. He does weld he crank and balance it.

If you want timken bearings, he will order S&S cases with timken bearings already in the cases, think he said if he got S&S cased if he would do a S&S crank too..

done a million timken conversions,wouldnt built a high HP/TQ motor without on `03 up motors.

stage 4 heads from who? lots of head guys out there that`ll make less power than ya got now!!(beleave me,we get alot of riders asking if we can "fix" their ported heads!!!)

Seen motors GMR and other folks has done with Timeken conversions. They didn't hold up to Big Cu. Motors.

I know a dude that races bikes. He has build more motors than anybody I know. He's a total gear head,Head porter, balances cranks, etc.
I'm a retired Locksmith.. Done my own builds.

He explained it to me. He will not under any circumstances put timekin bearings in a case that was designed for INA bearing.
If you like it and have good results Great.
I'm sure you know more about it than me. And are a lot better than me.

I was makin a statement.
Seen a lot of bad results costing a lot of money from it.
After listening to him, and the results some of my buddies has had, I agree with him
I've even seen the screws that was locktighted in come loose and go in the oil pump on my buddy's bike. a 12,000 build

If they are done correctly its not a problem at all . I had to have mine done along with the crank balanced and welded . when i shifted the wheels in my deuce and the gear on the crank spun for the balance shafts as well . never had a problem after that i spun that motor many times above 6200 after that . all was good!!!. p.s, thanks for getting the cylinders done talk at ya in the am !!!!

My buddy got his done with GMR years ago. But we learned different.
If I remember it was a 124 motor. It ran good.
But after that he had a 117cu build that ran a lot faster.

well,he`s wrong,or screwing up installing them.when installed properly,youll never have a problem,building big `03 up motors with the stock straight roller bearing is nuts (the SE "lefty" bearings aint no fix either).whats his name?if he`s any kind of racer,ide know who he is

gmr

I am having a rebuild already. How does this stack up?The bike is 2011 streetglide that was bored to a 107. Ran excellent with performance parts. Now going with stage 4 welded hds, tappets race99-11ct, 58mm throttle body,high flow injector kit, pushrod set, chromemoly, roller rocker arms, camshaft kit chain and new cylinder bore. Bike Mainly built for occasional street running and bragging rights. Bike is to be compatible for both street and highway. Any thoughts about such a build being compatible for street and highway?

I need a loan.....

Glad you brought to my attention about the bottom end. Better now than problems later.
I am new at this.

stage was on there

stage three hds was on the bike.

you were right

He showed pictures of his shop.
And he races, so he knows a hell of a lot than I would ever know.
JUst been taught after seening timeken conversions that I won't do one.
I've even seen the locktited screws in the sleeves to come out and it in the oil pump and all.