Vortec Heads????????

[kessler]

Ok well im picking up a set of vortec heads tomorrow and i already have a nice set of 2.02 Valves im going to be going with but what i need to know is what exactly needs to be done to the Intake Manifold to make these work? Ive looked Briefly for this topic but i didnt see it anywhere, Any help would be great, Thanks

 

[jwaller]

Re: Vortec Heads????????

they must be welded up similar to this so that the gaskets can be held in place and if ported so that the ports will line up.

 

[kessler]

Re: Vortec Heads????????

Does anyone else have any uhm better pics, Sorry no offence i just need to see a little better setup

 

[jwaller]

Re: Vortec Heads????????

whats more to see, you weld to the top of each port so that it's 1/4" taller. very simple.

 

[kessler]

Re: Vortec Heads????????

Do you have a shot of the Intake from the bottom, Sorry i weld and this is somthing that i can do but i want to make sure that i do it right befor i go screwing things up

 

[jwaller]

Re: Vortec Heads????????

you mean something like this?

once it's welded it has to be surfaced on all sides.

 

[ghettosled]

Re: Vortec Heads????????

Maybe these will help you understand a little better

and

and

 

[kessler]

Re: Vortec Heads????????

Yep thoes are a little better for me to understand. Thanks very much i just picked up the Heads today and now i dont know if i got the right ones, I got them off a 2000 4.3 Vortec, these will work correct?

 

[VermontTy]

Re: Vortec Heads????????

What's the casting on them? They should be okay.

 

[SonomaGTlover]

Re: Vortec Heads????????

Here is how I did mine. It was a little extra work but well worth it in my opinion.
I believe this to be the best method of modification, but then again I am a little biased.
The intake was raised up about 5/16" to properly align the runners. Instead of altering
the distributor I had the seat machined down to match it's original height before the mod.
This way I can use any stock application dist. or an aftermarket one without problems.
You can find more pics via SonomaGT #549 in my signature. I'd be happy to explain the
process I went through for my conversion.

 

[SonomaGTlover]

Re: Vortec Heads????????

One more thing...
You'll have to fill some of the old bolt holes and drill/tap new ones to match your intake.
I chose to fill all of the holes in my heads. I used JBweld and old bolts for this.

 

[ghettosled]

Re: Vortec Heads????????

FYI, they make metric screw in plugs so you didnt have to use JB weld.

 

[Hu Ryde]

Re: Vortec Heads????????

Here is some good info archived from David (Myclone) from back in the day.

http://www.syty.huryde.com/html/engine/772_cut.htm

 

[MikeRenz]

Re: Vortec Heads????????

some more pics for you:
http://www.michaelrenz.com/typhoon/vortecs/

 

[SonomaGTlover]

Re: Vortec Heads????????

FYI, they make metric screw in plugs so you didnt have to use JB weld.

That's cool...I didn't know that but I will keep them in mind next time.

Here is some good info archived from Dave (Myclone) from back in the day.

http://www.syty.huryde.com/html/engine/772_cut.htm

I've been looking for those pics since they were in a thread back onthe old forum look. Thanks :tup:

 

[kessler]

Re: Vortec Heads????????

Now that was a nice wright up, Thanks for all of your help, ill be sending the heads to the Machine shop probly next week to start the build, I need to get some good Valve springs but im a little lost on what to get, I have a set of 2.02 intake,1.60 Exhaust, with 11/32nds Stem any other sudjestions

 

[jwaller]

Re: Vortec Heads????????

convert to sbc studs and use the comp beehive springs and matching hardware.

 

[ghettosled]

Re: Vortec Heads????????

well it depends what you are after.. You can do beehive springs, and arp screw in metric-stnd studs with roller tip rockers or drill for 7/16-20 studs, machine the spring pockets for better springs, spot face the heads for guide plates, and run full roller rockers with stock length pushrods... The preferred method being the second, however this is a bit more time consuming and overkill for a basic rebuild with mild cam..