I personally would think about going 107" along with cams & headwork,but with the right headwork & compression set @ 10.0-1.there are a fair amount of cams out there that will work very well.S&S .570,andrews 54,fuelling 574

 

+1 on the 48's. Drop them in to keep yourself happy for now. They are a huge improvement over stock, then save your $$$$ for a stout 107 build. That is plan, especially since the army is putting me up in upstate NY, only an hour from Scott at hillside!

 

I went with se255 that i bought on ebay and i am happy . U cant imagine the difference . It hit just above 2500 rpm . Am sure there is other cams out there that will ran as se255 or better but for the price . And a new map with pv

 

As others have said, if you're going to go to all the trouble of swapping out the heads and cams, it's a no-brainer to just go ahead and bump it up to a 103" or a 107". Just a few hundred more than what you're planning on now!

 

Most of the motor is already apart, it's only another half hour to do the jugs and pistons. Truly a no brainer.......

 

I followed these guys advice in the past and put in the 48s and am very pleased, but I didn't remove the heads. I am still considering some 103 pistons in the future as they really are inexpensive. One of the better tuners in Detroit had the opinion that simply replacing pistons to go to a 103 with an 030 head gasket was a good bang for the buck upgrade for a guy looking for more torque on a dresser. Good Luck.

 

I'd go along with the others in their opinions of just getting a 107 kit with the right cams and call it a day.
I wish I would have.

 

A well-built 107" can show you at/near 130 hp.
Folks, we've seen 125/125-up from 107" carbed engines back in the late 1990's with single-cam powerplants.
Not shocking news here.
Scott