Ported Heads and Intake
10-18-2006, 05:40 PM
#6
No cnc heads here just a local houston porter, true but horsepower is not just simply gained by hogging out the heads and intake, yes more area for airflow is required but the air has to maintain its velocity without turbulance. Did you port match the intake to the heads? In my opinion I would have practiced quite a few times on unimportant heads and also learned/researched as much as possible from other porters before I started grinding away at my heads. But oh well we live and learn, let us know how everything turns out.
10-18-2006, 05:43 PM
#7
Originally Posted by lt197formula
Did you port match the intake to the heads?
Yea, I have to see what it does. Alot of people here said the looked good. Even the Machine Shop was impressed.
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10-18-2006, 05:45 PM
#8
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that looks good im going to be rebuilding my motor soon and i think i will try it myself also . from what i read on here port matching the heads and manifold makes a big diff .
10-18-2006, 10:46 PM
#11
From what alot of people say, it's like 10hp. I don't know exactly, all I know is that I saved like $800. I took alot of metal out of them, so I made some kind of improvement. I used a Felpro Intake Gasket, don't remember the number.
10-19-2006, 01:14 AM
#16
stupid question but how do you know if each cylinder flows the same? Or that you didnt know it you ported on different then the other, or one is gonna flow more or less then the other cylinders? I guess you dont know unless you get all technical and have them flow tested. Then how much will that effect the way the motor runs if there all ported different? They look good however. And done get me wrong bro, i do a lot of work myself to save some big cash. But IMO i wont mess with my heads. But good luck and let us know how it turns out. Congrats.
10-19-2006, 06:50 AM
#17
I had that question asked before, and the funny thing is that from the Factory each port was a little different from each other. After I got the main cut in, and squared them up, I went in and ground out some more out of all of the Ports at the same time. I did it that way so I can keep my hand in the same position for each cut, so they are very close.
I went in far enough to taper and smooth out the Air Flow. I drew in the area that overlapped the Gasket, cut it down, and cut the rest of the Port out so they are smooth.
I went in far enough to taper and smooth out the Air Flow. I drew in the area that overlapped the Gasket, cut it down, and cut the rest of the Port out so they are smooth.
10-19-2006, 07:54 AM
#18
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I believe for what you are trying to do not bad.
it is just a port match job, not like you went and worked any other part of the head so 10RWHP might be the number you get, I dont think 30 will be the gain here.
Worth trying right, it's just a POS LT1 that most have written off anyway.....
it is just a port match job, not like you went and worked any other part of the head so 10RWHP might be the number you get, I dont think 30 will be the gain here.
Worth trying right, it's just a POS LT1 that most have written off anyway.....
10-19-2006, 08:16 AM
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Originally Posted by Tony Shepherd
You are right. Most have done that!!
