Vortec Heads???

[Foot Performance]

I am started to piece together the stuff to do this mod but wondered if all the vortec headsa re the same or if there is one better than the other and if 2.02 upgrade is a good idea or not

stock intake and more than likely stock cam unless I find a non balance shaft block to put together. :tup:

 

[MikeRenz]

Re: Vortec Heads???

i wouldn't keep the stock cam w/ vortec heads - you aren't taking advantage of them if you do. All of the castings after 96 are the same. I didn't do valves in mine when i put my motor together but have no real world feedback for that for you.

 

[MRKING]

Re: Vortec Heads???

I believe the 2001 and up castings have slight improvements from the 1996 ones, but without searching for the specifics i can not elaborate .

 

[Foot Performance]

Re: Vortec Heads???

i wouldn't keep the stock cam w/ vortec heads - you aren't taking advantage of them if you do. All of the castings after 96 are the same. I didn't do valves in mine when i put my motor together but have no real world feedback for that for you.

If I find a non balance shaft motor I would do a cam upgrade. Mainly I was just wondering if there were diffent heads I know on the vortec v8 there are 3 or 4 diffrent casting and there is one that is a really good head I just wondered if the v6 were the same way :tup:

 

[dgoodhue]

Re: Vortec Heads???

If I find a non balance shaft motor I would do a cam upgrade. Mainly I was just wondering if there were diffent heads I know on the vortec v8 there are 3 or 4 diffrent casting and there is one that is a really good head I just wondered if the v6 were the same way :tup:

The 2001 and later one have the 8mm studs for shaft mount rockers. I don't think their were any major changes. The later V8 Vortec had better air flow than the earlier ones, I suspect the V6 ones never got those changes.

 

[Foot Performance]

Re: Vortec Heads???

That is good to know I will probably just have the ones I have reworked thanks for the help guys

 

[BoostedSUV]

Re: Vortec Heads???

I know your question was answered but I'm with Renz... Why not change cam? Our stock cam was not designed for the vortec heads so you will not truely get the full benefits from them. At minimum I would use the stock 4.3 vortec cam if not a comp 410, 412, or 415. I guess I'm not understanding your reasoning?

 

[NecroWolf]

Re: Vortec Heads???

i would get a custom cam from erue he's got some fast ramp cams that are suppose to be great

 

[Foot Performance]

Re: Vortec Heads???

I actually think I have got a line on a non blance shaft motor that I will be somewhat fully building. I just didn't realize every one was doing a cam swap with the vortec heads

 

[It's just a six]

Re: Vortec Heads???

I would not install 2.02 valves,,, the castings get thin,also your more likely going to crack the cylinder head

1.94" valves will work just fine.
.:2cents:

 

[Maxtor]

Re: Vortec Heads???

I would not install 2.02 valves,,, the castings get thin,also your more likely going to crack the cylinder head

1.94" valves will work just fine.
.:2cents:

Agreed. In addition, I would also spend the time to look for a set of marine heads with hardened exhaust valve seats, you will thank yourself down the road when they don't crack. They are easy to spot due to the different color around the seat.

 

[NecroWolf]

Re: Vortec Heads???

i got a complete 03 motor and i'm going to swap out the cam for a better turbo specific on.