how do i do : Porting & polishing
Postmaster
Joined: Jul 2005
Posts: 3,248
Likes: 0
Originally Posted by LedheadELH
Another thing, is you're not going to want to take any off the floor. the only thing you want to do to the floor is take out any casting flash, and smooth it out, and like someone earlier said, make the short turn(the curve where the floor of the port meets the valve seat) a little less sharp, so it's not an aburubt turn, but DO NOT get carried away, just do a little.
Another way to gain alot is if you're looked into the port down through from the combustion chamber into the round hole where the vlave is, you see the vlave guide down in there. you'll notice that it's as if there are 2 troughs or gully like sections to the right and the left or the guide, that a finger can't even reach the bottom. well a tight trough like that hurts flow. make those gullies go from a tight "V" like shape, to a muss less sharp "U", or even better if the tops of that "U" go outwards!. you can also gasket match. on the exhaust side though, make the port on the head slightly smaller than the port on the headers. on the Intake you can make them the same. On the Combustion chamber put the head on the motor, and put your hand through the cylinder bore, and trace EXACTLY where the edges of the bore is compared to the head. now where the curve of the Combustion chamber is close to the cylinder bore curve, you can cut away right to that line you scribed. If you use Dykem Die, or a marker, and scribe though the die, the lines will show up, and be real easy to see.
Also, on the bottom of exhaust port, on the inside of the turn, there is a raised section, you can take some of that out, but not more than an 1/8" or so, and try to take a good bit out of the roof of the exhaust port. you can feel w/ your fingers how thick is is, because the other side isn't water, it's the outside of the head!, if you have any question, and have a couple FE heads cut up. some C8AE's, and a D2TE's.....even thought they are the same!...lol
Another way to gain alot is if you're looked into the port down through from the combustion chamber into the round hole where the vlave is, you see the vlave guide down in there. you'll notice that it's as if there are 2 troughs or gully like sections to the right and the left or the guide, that a finger can't even reach the bottom. well a tight trough like that hurts flow. make those gullies go from a tight "V" like shape, to a muss less sharp "U", or even better if the tops of that "U" go outwards!. you can also gasket match. on the exhaust side though, make the port on the head slightly smaller than the port on the headers. on the Intake you can make them the same. On the Combustion chamber put the head on the motor, and put your hand through the cylinder bore, and trace EXACTLY where the edges of the bore is compared to the head. now where the curve of the Combustion chamber is close to the cylinder bore curve, you can cut away right to that line you scribed. If you use Dykem Die, or a marker, and scribe though the die, the lines will show up, and be real easy to see.
Also, on the bottom of exhaust port, on the inside of the turn, there is a raised section, you can take some of that out, but not more than an 1/8" or so, and try to take a good bit out of the roof of the exhaust port. you can feel w/ your fingers how thick is is, because the other side isn't water, it's the outside of the head!, if you have any question, and have a couple FE heads cut up. some C8AE's, and a D2TE's.....even thought they are the same!...lol
Logistics Pro
Joined: Oct 2005
Posts: 3,785
Likes: 4
From: Mddl A MexCans
More Turbo
Joined: Nov 2004
Posts: 590
Likes: 1
From: in the woods of Maine!
well I don't have any pics right now....and not really any way to put any online....but I'll work on that for ya guys.....when I get back from PA I can probly have some online
alright nevermind, I found out I do have a digital camera....so maybe tomorrow guys, before I leave to PA!
alright nevermind, I found out I do have a digital camera....so maybe tomorrow guys, before I leave to PA!
Last edited by LedheadELH; Nov 30, 2006 at 09:27 PM.
More Turbo
Joined: Nov 2004
Posts: 590
Likes: 1
From: in the woods of Maine!
Alright, I just put the pictures in my gallery, if anyone wants to see em'
Sorry I can't help U to explain the short turn radius thing. I'm sure someone can find you a picture. the only head I have cut up to see that in, was a 302 head, and it would be pointless for me to show it, because actually the short turn on those heads is already pretty nice. it's the long turn on those heads that suck!...lol
Now, there are a lot of little things that I did, and little concepts that helped those heads out alot, but that's my secret!, I can't give it all away, or I loose my edge!
Sorry I can't help U to explain the short turn radius thing. I'm sure someone can find you a picture. the only head I have cut up to see that in, was a 302 head, and it would be pointless for me to show it, because actually the short turn on those heads is already pretty nice. it's the long turn on those heads that suck!...lol
Now, there are a lot of little things that I did, and little concepts that helped those heads out alot, but that's my secret!, I can't give it all away, or I loose my edge!
Last edited by LedheadELH; Dec 1, 2006 at 12:10 PM.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Thread
Thread Starter
Forum
Replies
Last Post
38-72
1987 - 1996 F150 & Larger F-Series Trucks
2
Jan 12, 2012 11:12 PM