so im doing a head swap on my car and i wanted to keep my stock cam for now i really want to do a sleeper set up and i also didnt want to put a cam in my car into i get a beater to drive everyday now with that said which head would be best for the stock cam but still have some room to grow i was thinking bout prc 2.5 5.3 but the dart heads are like $400 cheaper so im really considering buying these heads any opions would be great thanks!

 

If you go with Darts, go with the 225's.

 

Would they work ok with stock bottem end, cam, and valve train (execpt springs)

 

I agree!


Yes, there should be no issues. Are you getting them assembled or non assembled? If assembled just bolt them on and go. You might want to check the lifter preload though, and to use the stock rockers you may have to grind off the locator tabs on the base.

 

the art of gaining power is to get as much air as you can in with smaller ports , i had the 205cc and loving it .

works well with stock pottom works fantastic with stealth cams and works greatly fantastic with big cams like G5x3 . got 422hp with no issue at all .

my recommondation to you get the 205 with MTI stealth cam if you want strong street car with stock idle .

 

How would i check lifter preload and yea i would be geting them assembled i was hoping for just a bolt on head were would i get that mti steath cam?

 

If they are assembled you are pretty much setup, I would suggest adding some ARP head studs if you have the money. As for the preload you are looking for about 1.5 to 2 turns to torque the rocker arm. You start counting the turns after you get the rocker bolt tight enough so that the pushrod just barely rotates. I am sure there is a better way if you search on here to describe it. Mainly you are just checking the pushrod length. Some times different thickness in aftermarket heads will changes it a bit, as well as cams or lifter changes.

 

I agree on the 225's. Even though they are designed for the 4.0 bore they still seem to do better than the 205's on the 3.898 bore......

 

Dart 225's here, great heads. Get the 225's.

 

I think im goin with the 225s but what gaskets should i get will standerd gm ls1 gaskets work?

 

How much power do you guys think i would gain with the 225 and stock cam

 

No, the chamber is wider. I had to use 6.0 gaskets when I ran my Dart 205's. Wait until you get the heads, measure chamber width to make sure the gasket doesn't hang into the chamber.

 

Really? That has been disproven many, many times.