porting and polishing tips/tricks - Northern California Ford Owners

This is topic porting and polishing tips/tricks in forum Tech Talk at Northern California Ford Owners .

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Posted by coupe5oh (Member # 10411) on :

im going to port my gt40s but i have a set of e7s that im going to pratice on first..any tips/tricks?also what is a good p&p kit to get? thx in advance

[ June 16, 2011, 02:46 AM: Message edited by: coupe5oh ]

Posted by 50DADDY (Member # 3076) on :

Just remove the casting flash(smooth out the inside of the runners).This is the safest way to get decent results if your a novice porter.
You should be able to find a kit with a mandrel shaft and sandpaper rolls at a machine shop or even an auto parts store.Theyre most commonly made by a company called Standard Abrasives.If want to get more agressive you can use stones first then smooth it out with sandpaper rolls after.

[ June 16, 2011, 03:19 AM: Message edited by: 50DADDY ]

Posted by coupe5oh (Member # 10411) on :

i found this...worth it?
http://www.summitracing.com/parts/TFS-90001/

Posted by 50DADDY (Member # 3076) on :

No stones in there but that'll do it.

Posted by coupe5oh (Member # 10411) on :

quote:
Originally posted by 50DADDY:
No stones in there but that'll do it.

cool...now for the tool...air powerd?battery?corded? brands?

Posted by x42bnx (Member # 9529) on :

Go to home depot, they sell the sets with rolls and with grinding stones. Then a normal dremel with high RPM will work, just buy from walmart it's like $70 then return it.

Posted by 50DADDY (Member # 3076) on :

quote:
Originally posted by coupe5oh:

quote:
Originally posted by 50DADDY:
No stones in there but that'll do it.
cool...now for the tool...air powerd?battery?corded? brands?

Ive actually used a regular old drill before,slow but it worked.Ruined my drill too,lol,but it'd be best to have a die grinder(air or elecric) and if you cant do that a Dremel.

Posted by 2stangs69-91 (Member # 1951) on :

most of your hp gains will be in the short turn and blending in the bowl and guide areas. Good luck

Posted by Duncan Motors (Member # 7045) on :

i couldn't even imagine the time it would take to use the tools u guys mentioned lol.but it will all work. air is cool if u dont mind stoppin all the time for the air compressor to work, electric is good, but not with a dremel but will take a long time, a drill is way to big and bulky and slow, real slow. but it will keep u ocupied for a good long while! i salute u guys all for tryin and makin it happen!

Posted by clone nprogrss (Member # 10342) on :

make sure u have safety glasses on at ALL TIMES! dnt b like me n sydewayzlx50 n get metal shavings in ur eye!! i had a total of 8 pieces of metal removed from my eyes!! not fun! [Cool]

Posted by sinisterblk (Member # 8425) on :

The electric makita 1/4 grinder is a good unit. If you have a very healthy compressor plenty of cheap good air ones out there. Flexible shafts make them easier to maneuver

Posted by 79 cobra (Member # 10137) on :

quote:
Originally posted by clone nprogrss:
make sure u have safety glasses on at ALL TIMES! dnt b like me n sydewayzlx50 n get metal shavings in ur eye!! i had a total of 8 pieces of metal removed from my eyes!! not fun!

SAFETY FIRST

Posted by BlownSnake95 (Member # 10578) on :

i suggest taking it to some one that knows what they are doing. to try this with no practice or knowledge is a good way to screw up your heads and lose a lot of power with out knowing it until its to late. but good luck

Posted by Secnd2nun64 (Member # 1431) on :

I'd use a corded drill and a sanding roll. That way with the low speed you can take your time and see your progress. Scribe your ports using your gaskets as a reference so you know where to stop and to keep the ports the correct shape. People get into trouble when they rush and then realize they took too much off or loose control of the tool and hit a valve seat. I'm no expert by any means but I've done two sets of heads just port matching and smooting/opening up the exhaust ports never messing with the fuel bowl or combustion chamber..When I did my 289 heads I picked up a tenth at the drag strip just doing the exhaust ports. Not too bad for a 30 year old drill and $5 in sanding rolls. Yea you could have a pro do it if your trying to squeeze every last horsepower but where is the fun in that? I say definitely do it yourself and be proud of YOUR accomplishments.

Posted by phil a (Member # 6951) on :

quote:
Originally posted by x42bnx:
just buy from walmart it's like $70 then return it.

Classy

Posted by SLOWSN95 (Member # 8269) on :

I've got the best trick and tip.. take the heads to a professional [Wink]

Posted by sinisterblk (Member # 8425) on :

quote:
Originally posted by SLOWSN95:
I've got the best trick and tip.. take the heads to a professional

Bad advice, you can do this yourself. Do a little research it's not string theory. That's what being a car guy is about too many people take it to a "professional" who at one point was just a hobbyist like us.

Posted by cali95gt (Member # 8940) on :

Best advice is to sell them and apply that $100 in supplies you were going to use towards porting, add another $100 or so and get some aluminum heads that will outflow and be lighter than your "Home ported" GT40 Irons"

No other way to put it bro, and this is coming from a super cheap guy [patriot]

Posted by 2TONE (Member # 4216) on :

gt40s FTW [patriot]

Posted by SLOWSN95 (Member # 8269) on :

quote:
Originally posted by sinisterblk:

quote:
Originally posted by SLOWSN95:
I've got the best trick and tip.. take the heads to a professional
Bad advice, you can do this yourself. Do a little research it's not string theory. That's what being a car guy is about too many people take it to a "professional" who at one point was just a hobbyist like us.

I know that.. I'm just givin him a hard time cuz I know him

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