another vortec ?

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pontiacws699

New member
Ok as some of you know my heads are off and may have a crack(not sure yet) but I have vortec's here with a cam, valves, and injec. I called the local machine shop and he said the vortec wont cool right and it couldnt be done so you and I know it can.


?'s
1. intakes off so should I just get he intake heads drilled for the intake.

2. Will they cool right

3. Anyone know of someone that knows what there doing kinda local and wont kill me on price and that can get it done asap

4. anything to it than just adapting the heads to the intake?
 
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MikeRenz

not stock
Re: another vortec ?

had i known you wanted to do this, i woulda had you bring the vortecs to me when you were up this weekend. I can still get the intake modded and heads drilled for you for probably around $400 total.

Yes they cool right. I've never heard of that. Those heads are used on a ton of motors from the factory w/o problem.

You have to weld the lower intake as mentioned, and drill/tap a couple holes into the heads to accept the bolt pattern of the syty lower intake. Then you just need the proper intake gaskets (people tend to use 1268 and 1203 felpros....read my site that sy2932 posted above, it'll explain the difference) Whichever one of those you choose, if you want me to get the mods done they'll buy a gasket set and mod your parts to work together.
 
BoostedSUV

BoostedSUV

Active member
Re: another vortec ?

There won't be any cooling problems with the vortecs. I have never had an issue... Jwaller in SC converts the heads/intake for the vortec swap if you want to send him the intake. Other than that the stock vortec holes need to be plugged and the head needs to be drilled and tapped for our intake. Use the felpro 1201 (I think) intake gasket and you're good to go! Everything else bolts up with out issue...
 
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MikeRenz

not stock
Re: another vortec ?

You can get conversion rocker studs...or drill/tap the heads for sbc studs. Prob is the conversion studs don't accept stock rockers - most just use self align aftermarket rockers anyway. 1.5 is stock ratio...many up it to 1.6 but you have to take cam lift and spring rates into account...and make sure your seats can handle the pressure too. Stock length pushrods are fine...but I wouldn't reuse your old ones. Same with lifters.
 
BoostedSUV

BoostedSUV

Active member
Re: another vortec ?

To add to what renz said, if you choose to go with 1.6 rockers you will need to machine the push rods bosses. With the extra cam lift and rocker ratio the push rod WILL hit the head. Stick with 1.5s if you want to save that machine work but you can get a little more horsepower out of the motor with 1.6's.

Pick up a good set of roller tip 1.5 self aligning rockers from one of the vendors on here and be done with it :tup:

Depending on the SBC screw in studs you get the head may have to be machined down by the rocker stud nut unless you get the ones that have a collar instead of a nut.
 
alwayscode390

alwayscode390

pppssssshhhhhtttttttttttt
Re: another vortec ?

pontiacws699 said:
why is it that I feel like im jumping in over my head?:rotf:
Click to expand...

I felt the same way, and went EXTREMELY PORTED l-35's ... and probably should have stayed that route.

Now I have ported Brodix 6's ... talk about money , and I STILL have to get it modded just like if I went the vortec route ---
 
M

MikeRenz

not stock
Re: another vortec ?

pontiacws699 said:
why is it that I feel like im jumping in over my head?:rotf:
Click to expand...

given this is your first venture into syty-ism...it is quite a leap. Although i did it back when i was a noob too, and got it to work / didn't have any issues with the swap. You would be much easier off with an L35 head as mentioned above...and way less $ into it. They simply bolt on and line up to our lower intake...they don't flow quite as much as stock vortec heads, but you can spend some time/$ porting them to get them close.
 
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