[flatblackcrew]

Hi, I know I might sound stupid but I have a problem. I have a 454 out of a 1971 - 1975 truck and It came with a wieland stealth intake manifold on the side. I went to install and found this wierd square looking ports on the heads. regardless to say when i went to match up the intake and the cylinder heads the intake did not have any ports matching up to this thing. I enclosed a photo to show you the type of head I am using.

http://www.edelbrock.com/automotive_new/mc/heads/chevrolet_bb_rpm.shtml

 

[Guest]

You are probably trying to match E-brock's "ROVAL" intake port heads to a rect port intake manifold..

They are E-brock's supposed large oval ports that they say equal true large ovals like stock..

BUT they aren't large ovals at all but rather just short rect ports!!

Hope's this help's and linkie no workie for me..

pdq67

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[flatblackcrew]

Im talking about in the middle of the cylinder heads, some just have a blank space, but on mine I have this 1 1/2 inch square with the best way i can desribe it is a maze around the square. I'm thinking its some kind of cooling galley? Please Help

 

[GuysMonteSS]

So do the intake ports match up OK ? Your link isnt working,btw.
Guy

 

[flatblackcrew]

Intake ports do match up ok. Its just this thing in the middle I have never seen before in my life. I use to be just a small block man. Try this link, I also reposted the topic under BIG BLOCK CYLINDER HEADS. that link works on that post. thanks

http://cgi.ebay.com/ebaymotors/Big-B... 1737152QQrdZ1

 

[GuysMonteSS]

I see what you are talking about,I'm not sure exactly what it is,but I beleive it has something to do with coolant routing.My factory rectangular port heads have the same thing,so I guess its a normal part of the head.
Guy

 

[david_396]

That's for heat to the carb.

 

[Guest]

Oh, gotcha!! Not ports????????????????

That's just the heat-riser like david mentioned.

Some aftermarket heads don't have that b/c they aren't made to have a working heat-riser passage. My cast-iron Merlin ovals are cast plugged w/ an indent that you can sit a drill bit in to drill it through if wanted..

pdq67

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[flatblackcrew]

Ok thanks, but do you know if they have after market Intake manifolds that hook up to that type of head. Or is there some type of blank off plate that you install. My Wieland Intake dosen't cover the openings.

 

[Johnny O]

The block off plates for those heat passages should be in the intake gasket pkg. that you buy. Or, I know on the two Edelbrock intakes that I have, both the single and dual plane, the mounting rails on the sides of the intake cover these heat risers so you dont have to worry about it .. Either way is OK.

 

[flatblackcrew]

Heres the thing that had me puzzled... The intake manifold (Weiland Stealth) does not cover up the "heat risors" but only half way. So when I matched up the intake gasket, part of the gasket covering the heat risor is not underniegth the intake. Any help...

 

[SoCalRat]

Use Mr Gasket 5827 to cover the crossover, Same issue on my Edelbrock

 

[flatblackcrew]

thanks