Been looking into some minor head work, maybe, porting, polishing etc. and I'm seeing that for the money I could get a set of Ultima heads. These already flow much better than my stock 69 heads. Just wanting a better breathing beast without too much fuss. Sooooo what's everyone's opinion on Ultima or even S&S aftermarket heads????? Don't beat me up too bad now, my 69 garage sale rigid is a conglomeration of parts already. Plus I'm in Alaska and would need to send them outside anyhow.Thanks in advance.

 

in the shop we sell ultima stuff and the heads are better then the Taiwan stuff v twin sells they are key noted for the 96 inch shovel motor they box sell as a complete ready to install

question - what do you have in the engine you now have to support a set of good flowing heads - if its n0thing - maybe a cam and 8 to 1 pistons the bike wont tune correctly -

 

Hey John, can you elaborate on this? won't tume correctly? I ask because I'm also looking into the same heads

 

I thought for a stock or mild shovel, the heads flowed too much to begin with. Archaic design but still the valves and ports seem geared towards a larger displacement or an engine that revs higher than this tractor engine is designed to spin.

 

they are geared to a 96 inch engine all the port and valve work so it stock or near stock app they are over the top

think of it as a small block chevy with big block chevy heads

 

Makes sense, I thought boss 302 when I saw the valve size vs displacement. In the case of the shovelhead, high rpm heads on a low rev tractor engine!

 

but throw a 4 5/8 stroker flywheels and a real sifton 109 that is not made any more and you have a twinkie eater

 

Put in a cam you cant get, noted!

So in this imaginary world with that unavailable cam it will beat the twinkie......until it spits a rod trying to hang with a 103 six speed.

 

I HAVE 3 OF THE OLD SIFTON .440 CAMS these are the #109's made by sifton not chinese

 

Just because it has 103" doesn't mean it can get out of it's own way.....My little 80" Evo was eating up the CVO's..............
Dale, You still around Man.........?