Right now I have the money for brand new vortecs, or a used set of sportsman II and a used set of dart iron eagle. The sportsman IIs and iron eagles are the 200cc version and have 72cc combustion chambers. Right now I have 9.6:1 compression with 64cc heads.

I will only be revving to 5700 or so tops. Which heads would you recomend for a street driven car with 3.73s? I will also be running a xe268 or xe270. This will be with an automatic transmission. Until I can save up for a t56.

which heads?!

 

It all depends on what condition the Eagles and Sportsman II's are in.

If you only have "X" amount of $$$, all three could be out of your budget.

Vortecs need upgrading for either of those cams. This involves either buying them upgraded, or having a machine shop do it. And if either of the other two need refreshing, that's more $$$ spent also.

If I had my choice between the three, and money wasn't an a concern, I'd pick one of the other two, not the Vortecs.

From what I understand, the Sportsman II's and the Iron Eagles are pretty much a wash. They're virtually identical since Dart and World are sister companies. I may be mistaken on that though. I only heard that through WOM.

 

Used to be. Their website used to say that Dart did the foundry work for World in their early days, but they've completely parted company now (it mentions Dart in the "about us" part of their website now, but I didn't find the part about being separate from Dart like it used to say).

Oh, don't forget about the cost of an intake manifold with the Vortec option.

 

I would say the sportsman II's
My buddy has them on his 383, and had I think Vortecs...what a huge difference
Thats my 2 cents..the darts or Sportsmans are good
P.S. good call on the T-56

 

Pro Toplines

 

where can i find a used set of pro toplines, complete with roller cam compatible springs, valves, ect? for around $500ish?




i can find used iron eagles for that price... complete with valvetrain

i can find used Sportsman IIs for that price... complete with valvetrain

i cant find a single set of used pro toplines.......

 

I'm not worried about getting the vortec intake manifold. I was gonna get some anyways.

My goals are 350hp at the crank. Maybe 300 at the wheels if possible. You think I could do this with vortecs?

I'm now looking into getting a set of 170cc edelbrock e-tecs. Twice the price but they are alluminum...and im sure they are a better head.