73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Performance => Topic started by: thachevythang on February 21, 2011, 03:52:06 AM
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The vortec heads I have on order have square port exhaust. I was going to order summit full length headers but they are oval port. Can I order a welded flange kit and not have any major issues? I did find round port on jegs that will probably work out better but on a tight budget now.
I know these are for mopar but they look like they might work. Could be worth it not having to spend extra on the flanges.
http://www.jegs.com/i/JEGS+Performance+Products/555/30081/10002/-1
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I believe your getting different peoples opinion of what shape the exhaust ports are & it's making it seem worse than it is (unless these heads have been intenionally ported to some square shape other than stock).
The Vortec heads use a traditional gasket & header port. Yes some gaskets & headers have wee little round ports (1 1/2" tubes), but the normal ones have a 1 5/8" tube which is bigger than a regular SBC port & also the Vortec. You have little to be concerned with assuming you buy a quality header that fits your truck.
Here is a stock size Vortec head...I have done some portwork in the runner, however the port exit shape & size are factory. The second picture is my 1 5/8" tube headers...the round area is just bigger than the squarish shaped port. Hope this helps. Lorne
(http://i163.photobucket.com/albums/t285/HAULINIT/Vortecheads004-1.jpg)
(http://i163.photobucket.com/albums/t285/HAULINIT/finishedturboheaders005.jpg)
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Sweet, that clears it up! It stated square port exhaust on the site but, pictures are worth a thousand words! Thanks Lorne. Weight off the shoulders now.