can anyone tell me what kinda perf they got from switching from stock iron heads to votech heads...... and will any set of votec heads fit my 350?

im thinking abou going out to the salvage yard and see if he has any vortec heads on a car out in his yard........ what do yall think?

They are "Vortec" heads.

Yes any set of them will fit your 350, as long as they're from a V8.

You won't find them on cars. They come on trucks, 96 up IIRC.

When you go to the yard, don't ask for "Vortec" heads, by name; don't even mention the word. Uttering buzzwords like that in the presence of the people who own the parts and run the yards, shows them that you are a hot-rodder, and they'll add the extra special hot-rodder cover charge and markup percentage. Instead, just tell them you need heads off of a 96 or 97 pickup with a 350, or verbage to that effect; then do your research so that when they hand them to you, you know what you're looking at, and you can tell them "no, those are off of an older TBI 350, they're the wrong ones, they're not what I want" or whatever. The casting numbers you want will end in 906 or 062. Again, don't walk up to the counter and say "I want 906 or 062 heads"; people looking to fix their construction company truck don't say things like that.

To add, they also take a different intake manifold with 4 bolts per side that go straight down so your old one isn't going to bolt on.

Very easy to spot so as RB said be sure you know what you are looking at & just ask for 96.97.98 or 99 V8 pickup heads.

Lot of places try to pass off the pre 96 TBI head as a "vortec"
They will have the standard 6 bolt pattern except the center two will be angled slightly but still in essentially the same place as all early small block heads.

BTW, they are pretty cheap new like $550 complete or so, so you don't want to pay much for them & then have to pay again to get them freshened

are any vortec heads off the trucks alluminum.......I have to rebuild the motor in my car and was thinking well heck i was gonna shave my heads well if i can find a set of vortecs ill put those on there but id really like to keep my intake.....

Originally posted by sxty9shovel:
are any vortec heads off the trucks alluminum.......I have to rebuild the motor in my car and was thinking well heck i was gonna shave my heads well if i can find a set of vortecs ill put those on there but id really like to keep my intake..... No aluminum Vortecs.
If you want to keep your intake you are going to have to rethink your head choice ;)
The heads can be drilled for the early intake but the ports don't line up & the only place I have seen it done is in some circle track stuff where there are these stupid rules about not using Vortecs so some of the "other" guys make it look like they ain't Vortecs with the early intake,,,, of course we would never do that :D

Check out www.sdpc2000.com (http://www.sdpc2000.com) for their vortec package deals. Need the ones clearanced for more lift...max lift is .450 with stock heads.

I guess ill just have my heads now shaved and surfaced......hey wolf i have some 72 cc heads how much would u charge to get them down to around 67cc or so just trying to get a ruff estament in my head......

While were on this subject how many cc's are vortech heads? And what size valves do they use?

Probably be best to check the local pricing as it varies from shop to shop & area to area
You will need to cut them about .030-.032 to get to 67cc's
I would charge $150 to flat mill them, correct the intake face & check cc's. on most heads.
I charge a little more for the aftermarket heads with the valve cover rail that sticks up as it takes longer to set them up
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The Vortecs are 62-64cc's, most on the low side & have 1.94 x 1.5 valves