Vortec info
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Vortec info
I figured I would post up some of the tech info from my current engine since there isn't a lot of information beyond stock vortec heads. I'm upgrading to the AFR Vortec 912's. I did a lot of searching before purchasing them and could not find any information anywhere besides that they exist. This post will be picture heavy. Also I'd like to keep this post strictly technical, any questions about how it ran/improved send me a pm. If I get enough questions about that I'll start a different post.
The old setup pertained of stock 906 vortec heads, and a Holley/Weiand Stealth Ram 7542. The intake ports on the stealth ram are pretty small, even compared to the 906 heads. Here are some pics showing the ports with the GM 89017465 gasket.
Stock 906 ports
Stock Vortec HSR
The old setup pertained of stock 906 vortec heads, and a Holley/Weiand Stealth Ram 7542. The intake ports on the stealth ram are pretty small, even compared to the 906 heads. Here are some pics showing the ports with the GM 89017465 gasket.
Stock 906 ports
Stock Vortec HSR
Last edited by conlinj; 04-24-2012 at 06:01 AM.
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Re: Vortec info
It's a GM gasket p/n 89017465. Its their latest revision, I did a lot of searching because of all the issues they had with them. Most people had the least problems with the latest GM gasket. Worked great for me for two years, and they are reusable.
-Jim
-Jim
Last edited by conlinj; 03-27-2012 at 08:31 PM.
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Re: Vortec info
I also used the ARP bolts over the GM bolts. There are a couple different fel pro gaskets too, Did you get the problem solver ones with the metal core?
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Vortec info
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Re: Vortec info
Thats the nicer fel pro, the 1255's I've heard have a lot of issues. Could be people over torqing them, I have no experience with them though. The latest fel pro and gm have metal bracing around the bolt holes so they can't be over torqued.
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Re: Vortec info
These are the gaskets I've used. I even reused this particular set for like... at least 4 different manifold installations before I replaced it. I had a junk set of heads, then replaced those, got a cracked block, and a few other things, but I had the intake on and off several times before the motor was in its current state, and although the motor had problems each time there was never any evidence of any intake gasket leaks. This particular time was the time my cylinder wall in my .060 over block cracked...
I loved these gaskets, super easy to work with. Pretty sure they're Fel Pro, but they may be GM.
I loved these gaskets, super easy to work with. Pretty sure they're Fel Pro, but they may be GM.
Last edited by InfernalVortex; 03-28-2012 at 12:17 PM.
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Re: Vortec info
Those look like my GM gaskets, the new style fel pro has the metal blockoff plate between the intake ports, the GM has the three windows. Funny you have red "o" rings in the gasket, mine are black. Can you get any numbers off of them?
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Re: Vortec info
But Ive had great luck with them as far as sealing, even after repeated uses on different heads. What was "wrong" with the earlier revisions?
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Re: Vortec info
Gasket Part Numbers
GM - 89017465 - Plastic w/rubber seal, metal rings around bolt holes
Fel Pro - MS901312 (Same as GM)
Fel Pro - MS98000T Problem solver kit, metal core gasket
GM - 89017465 - Plastic w/rubber seal, metal rings around bolt holes
Fel Pro - MS901312 (Same as GM)
Fel Pro - MS98000T Problem solver kit, metal core gasket
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Re: Vortec info
Available Vortec Heads
GM
12558060
10239906
12558062 - Assembled Iron
12529093 - Bare Iron
25534351 - Bowtie Sm Port Bare
25534421- Bowtie Sm Assembled
25534445 - Bowtie Lg Port
25534446 - Bowtie Lg Port Assembled
12497186 - Aluminum Bare
12464298 - Aluminum Assembled
EQ Lightning
CH350H - VORTEC HYBRID W/HEAT RISER 69-86 INATKE BOLT PATTERN AND PERIMETER VALVE COVER Iron
CH350G - 87-95 VORTEC HYBRID W/HEAT RISER MARINE/AUTO USE Iron
CH305B - 305 CHEVY 96 UP VORTEC 1.840" VALVE Iron
Patriot
2150 - Bare Iron
2151 - Assembled Iron
Summit
151124 - Iron
AFR
912 - Aluminum
RHS
12410-01 - Iron
12410-02 - Iron
Scoggin Dickey Parts Center
SD8060RA2 - stock iron casting modified for 600 lift
Dart
10024370 - Bare Iron
10024370A - Assembled Iron
Edelbrock
60959 - 170cc Bare Aluminum E-Tec
60969 - 200cc Bare Aluminum E-Tec
60979 - 170cc Assembled Aluminum E-Tec
60989 - 200cc Assembled Aluminum E-Tec
GM
12558060
10239906
12558062 - Assembled Iron
12529093 - Bare Iron
25534351 - Bowtie Sm Port Bare
25534421- Bowtie Sm Assembled
25534445 - Bowtie Lg Port
25534446 - Bowtie Lg Port Assembled
12497186 - Aluminum Bare
12464298 - Aluminum Assembled
EQ Lightning
CH350H - VORTEC HYBRID W/HEAT RISER 69-86 INATKE BOLT PATTERN AND PERIMETER VALVE COVER Iron
CH350G - 87-95 VORTEC HYBRID W/HEAT RISER MARINE/AUTO USE Iron
CH305B - 305 CHEVY 96 UP VORTEC 1.840" VALVE Iron
Patriot
2150 - Bare Iron
2151 - Assembled Iron
Summit
151124 - Iron
AFR
912 - Aluminum
RHS
12410-01 - Iron
12410-02 - Iron
Scoggin Dickey Parts Center
SD8060RA2 - stock iron casting modified for 600 lift
Dart
10024370 - Bare Iron
10024370A - Assembled Iron
Edelbrock
60959 - 170cc Bare Aluminum E-Tec
60969 - 200cc Bare Aluminum E-Tec
60979 - 170cc Assembled Aluminum E-Tec
60989 - 200cc Assembled Aluminum E-Tec
Last edited by conlinj; 01-18-2013 at 04:49 AM.
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Re: Vortec info
Nothing more than the look really pretty collecting dust with the rest of the car. I've been to busy with my house. Good new is the house is almost done so I hope to get back on it soon.
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Re: Vortec info
Car is running and it is running well! If it wasn't the cold season I'd get some ET's. The car definitely feels like it picked up some but right now it is hard to quantify.
-Jim
-Jim
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