port theory question

[sil]

red line is where abouts i would port but would it negativly affect flow and performance taking that much away from the valve guide.. besides taking away from strength that guide is rather short lol

the blue is kinda more realistic

what do you guys think


edit: grr its not uploading... and i gotta go posted at last minute fix later

[v6h.o.]

RE: port theory question

Sil I can show you some heads I have ported if you want some idea's.

[geoffinbc]

Colin what do you charge to port Iron heads? I need a set done!

Sorry for the off topic but I cant see any pics. Removing the protruding valve guide is common practice in the porting world.

[sil]

yes, id love to see a pair of heads

[TurboGTU]

No pic..but you can touch the roof, the bow, behind the valve guide, around the guide, and streach the port floor wider..but don't touch the middle of the floor or where it curves down on the short side. In the intake same..but you can also make the short side have a lump to improve flow.

[Arns85GT]

here's something for you

http://www.fiero.nl/forum/Forum2/HTML/060677.html

enjoy

[Guest]

RE: here

Those pics dont' show much and I would hardly call those ported.

[Arns85GT]

RE: here

And that is why Pennock booted you off.

[XLR8ING]

Nice work Arn!
Nice to still be able to see what you're doing even though I'm not always able to see it in person anymore.
Good job!

[614streets]

RE: here





SA has a nice guide for porting heads.

http://www.sa-motorsports.com/diyport.shtm

Have fun Ive done 4 sets of heads in the past its a long tedious job. Doing Iron heads sucks lol.
http://614streets.com/Andrehead2.jpg Some heads I did for cash, supposedly stolen before installed

http://614streets.com/edelbrockheads5.jpg

http://614streets.com/173heads.jpg

http://614streets.com/173head2.jpg

This one might give you an idea of the extreme end of porting a iron head
This larger pictures of the displayed ones above , ported by 60 v6 guru Bob Mccray

http://614streets.com/SS_10.jpg

http://614streets.com/SS_08.jpg

http://614streets.com/SS_01.jpg

http://614streets.com/SS_02.jpg

Some old ass information from the v6 power book

http://614streets.com/v6powerintakebump.jpg

http://614streets.com/v6powerintakebump2.jpg

[v6h.o.]

Some pics of 3400 heads I did for Eric a year and a half ago.












Sil the heads I just finished up last week for FarmerZ24 are already given back to him. Since my machinist is closer to him than I am I left them with him for Chris to pick up. I didn't get any pics of them. Which sucks as its some of my best port work on a 60v6 head yet. I've been porting 60v6 heads(as well as other engines) for 5 years and each head you do you learn or improve technique/ports on it more and more.

[sil]

that polish job on the cumbustion chamber looks good, same with your port work,im pretty much screwed right now with regards to working on my car... low funds, no where to bring it to work on becuase i have it stored at my moms and shes moving to the states in like a week lol
so i guess no porting for me

i have a set of ported gen2 heads, w/ valve job and i noticed the performance big time when i slapped em on last year
going to the hybrid swap now i have no use for them hehe
maybe i'll hog em out and fine tune my porting skills for next summer and do my 3100 heads then

thanks for the info everyone, indeed helpfull

v6ho.. what are your preffered tools, grits, and polishers, and what grit did you run over the intakes with? looks really rough 100 grit ?
im not sure what grit i want to do my intakes with i was thinking 120, and for my exhaust... well polish em up real good

[v6h.o.]

I have a selection of 6inch long shank and normal shank Carbide Burrs for aluminum and Ferrous metals that I use to cut and shape the ports.

I then use 40 and 80 Grit sanding rolls as well as on the exh side 120 grit flap wheels and then two series of polishing buff's.

Mac Die grinder tool.

[SappySE107]

do you use the medium and fine cross buffs? Pretty much the same tools I use, though no flap wheels.

[v6h.o.]

do you use the medium and fine cross buffs? Pretty much the same tools I use, though no flap wheels.

Yup.