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Author Topic:   Vortec Intake
Dirt Full Roller

Total posts: 60
posted January 25, 2005 07:48 AM  
I,m considering changing to Vortec heads but our track rules require a stock style cast iron manifold with the firing order cast into it. Anyone know of a cast iron intake that will bolt up to vortec heads without having to drill and tap the heads or modify the ports?
Scoggin-Dickey Parts Center lists one (part# 14097499), but I don't know if it has the firing order and so far I have recieved no reply from them.
Anyone have any experience with this?

Dirt Forum Champ
Total posts: 578
posted January 25, 2005 10:50 AM  
the ones i have seen have all had the firing order cast into them.


Dirt Forum Champ
Total posts: 501
posted January 25, 2005 11:06 AM  
Yes, the ones from SDPC have the firing order cast in them. They even have a "GM looking" part number on them, but they're not manufactured by GM....

Dirt Full Roller

Total posts: 60
posted January 25, 2005 11:41 AM  
Thanks guys, if it looks that stock I believe I can get by with it.

Dirt Roller

Total posts: 9
posted January 25, 2005 07:06 PM  
This has been a HUGE topic at our track. Our track has said that we can run vortec heads, but we have to run a stock cast iron intake that came out on a production vehicle, "no aftermarket stuff". They do make a cast iron intake that bolts right on, if I remember right, I think they said that it originally came out on a forklift somewhere that gm supplied. But since this was not a production vehicle, they wouldn't let it slide. We have to redrill the heads if we want to run vortecs. Then the horsepower you just gained by using vortec heads, you lose because the ports don't line up exactly. Our engine builder said that we're better off going with a good flowing double hump head, or a 441, or something along those lines.

Dirt Maniac

Total posts: 170
posted February 06, 2005 09:39 PM  
check out marine intakes

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