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Author Topic:   vortec heads
justin
Dirt Maniac

Total posts: 167
posted February 06, 2002 08:01 PM
Anyone have any experience running these heads. If so, what did you think of'em?

uforacing51
Dirt Freak

Total posts: 349
posted February 07, 2002 11:11 PM
Great flowing heads, for a newer 350, make sure they will work on your block and make sure the rules will allow them. And that your power steering will work with them. and that you can find a manifold that will work with a carb and those heads

Lumpy Smith
Dirt Roller

Total posts: 11
posted March 20, 2002 09:11 PM
I like the vortec heads you can use the older manifolds depends how good you are with a drill and tap. light casting head don't get them too hot..


hughes
Dirt Maniac

Total posts: 141
posted March 21, 2002 06:34 AM
Scoggins dickey a sponsor of this site (i think) Has a cast iron manifold for vortec heads. I would recommend this manifold because its port matched to the vortec head. The runners on a vortec is shaped different from a regular iron head. But its a heavy manifold. Besure on the heads to cut the guides and machine them to accept a spring with a dampner (if you run one), because these heads are only good to .470 lift.

RangeRover
Dirt Maniac

Total posts: 174
posted March 21, 2002 01:07 PM
Speaking of Vortecs, I'm building a 350 shortblock with small dome pistons. I've heard that you absolutely can't use Vortecs with domes and I've got a buddy with a smoking deal on a set. Does anyone know what the scoop is?

Eljojo
Dirt Freak

Total posts: 273
posted March 21, 2002 07:32 PM
Just look at the underside of the Vortec heads-that will remove any doubt as to whether the domes will work. You'll notice how the casting of the cylinder head takes up the same real estate the dome on the piston does.
Hughes-----you are the ONLY one I've heard speak positivly in referring to the cast iron vortec manifold. I've never tried it----but I've heard repeatedly that they're just so much junk. BTY if ya want a "decent" manifold--Edlebroc will fill the bill.

hughes
Dirt Maniac

Total posts: 141
posted March 22, 2002 05:31 AM
jojo If you have to run cast iron. Range the vortec has a heart shaped combustion chamber.

[This message has been edited by hughes (edited March 22, 2002).]

dirtracer17
Dirt Forum Racer

Total posts: 88
posted March 22, 2002 06:20 AM
I have Vortecs with a supervictor alum intake. I have less than 1000 bucks in the whole setup. I highly recommend this setup if you can run alum intakes. I am sold on the Vortec heads. The cast intakes are o k also but make sure the ports line up correctly. Seems to be some problems with this.

ford5
Dirt Freak

Total posts: 298
posted March 22, 2002 06:39 AM
its seems to me,(and i could be wrong) that all center bolt valve cover heads should not be considered "vortec" types, because not all have the heart shaped combustion chamber or the swirl effect that is cast in the heads right below the intake valve seat which is the whole vortec design, am i correct in assuming this?

dirtracer17
Dirt Forum Racer

Total posts: 88
posted March 22, 2002 03:47 PM
The "good" vortec are 1996 and up.

Eljojo
Dirt Freak

Total posts: 273
posted March 22, 2002 09:47 PM
There are different GM centerbolt castings. If you are in doubt as to the quality of the casting you are considering using--go to the pros! Some of the castings aren't much good and some show incredible flow numbers. In a recent article Circle Track magazine said that if you aren't allowed to port---you'd better be running Vortec's than Bowties!
I sold my Vortecs to another racer. They were drilled to match up with the "old manifold" I never liked the way the ports lined up and they would sometimes leak water--since the new bolt pattern was drilled into the water jacket. I'd also had 2.02 and 1.6 valves installed-which shrouds the valve and actually hurts the heads' ability to flow. They made a lot of power and never cracked-but I'm not sorry I parted company with 'em! I replaced them with World Products and was able to run cheap valve covers and roller rockers (not so on the vortecs-'less ya got the "big bux" for the special rockers!

oldgold
Dirt Full Roller

Total posts: 36
posted March 24, 2002 07:21 PM
i have a new cast iron vortec that i cant use and would like to sell it. 175 delivered or trade 517-646-8821 rick or cata323@aol.com

hughes
Dirt Maniac

Total posts: 141
posted March 24, 2002 07:32 PM
jojo, the vortecs do have self aligning rocker arms, but if you tap them for ***** -in-studs and use guide plates you'll be ok.


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