sorry if this is in the wrong message board.. but i just wanted to know if heads off a 2004 5.3 leader vortec.. will fit on my 350.. i know i need a new intake but i want to make sure i can pu those heads on first.. thanks

comepletely different motors; our cars came with first generation blocks, that 2004 is a 4th generation. only thing in common between the two is the amount of cylinders they have

well i need help with heads then.. i want heads that come off a car/truck.. that will fit.. that are good.. cause im trying to make a nice kinda quick car for as cheap as i can. seeings how i ship out for the military in like 2 months.. i dont have the money nor time to drag this build out..now after boot camp and once i get stationed and my car there.. thats a diff story but for now im lost on what to do

'96-'99 light truck 350 heads, 062 or 906 castings. Flow well, but you do need a "Vortec" specific intake manifold for them.

well i hear 062 was better then 906 and the 906 heads are junk?

That was stated in a magazine article years ago and is in the on-line edition of the article. However, it was later recanted in print, but never on-line, so it keeps getting repeated.

Either one is fine.

Thought this might be a good place to ask my question… I have 062 Vortec heads and I plan to put them on my 91 305 block up until earlier today I was sure that it would work, then I called to get a price to mill them down to the proper cc and was told that they won’t work because the 305 bore is too small, so I pulled out the gaskets and it looks like if I used 350 head gaskets it would be fine. Can anyone confirm? Any help is appreciated

i have the same question as NeedMorePower up there... will they fit on my 85 lg4?

im gonna pick some up at a junk yard this weekend for 40 bones and i would love to make them work if they offer a little better flow than my stock lg4 heads

They're basicly the same head aren't they? I have one of each casting and I want to put them on my car lol.

He doesn't know what he's talking about.

Without milling them, you'll lose some compression, but reports are the improved flow and combustion chamber design more than make up for the loss of compression.

Yes.

so somebody got to my heads before i could.

i found a set that are selling for 200 dollars. 97 suburban 5.7 heads.

but its a drive... so does it matter what cast numbers are.. should i be calling ahead or does it matter? remember just putting them on an 85 lg4
thanks