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Old 04-19-2006, 12:41 AM   #1 (permalink)
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Porting 460 Heads

Does anyone know of a site or does anyone have any good directions for porting a stock 460 head....I have a 1987 460 and want to port the exhaust but would like some advice or directions on what is the best way to port it....if anyone has pics of their port jobs that would be great....
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Old 04-19-2006, 07:13 AM   #2 (permalink)
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Bolt the gasket to it, then use a sharpie to outline the inside of the gasket and take away the extra material. Do the same on the exhaust or intake.
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Old 04-19-2006, 07:23 AM   #3 (permalink)
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I have some PDF's on how to do this, PM me with your email addy and I'll send em to ya.
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Old 04-19-2006, 09:09 AM   #4 (permalink)
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Quote:
Originally Posted by yotadude77
Does anyone know of a site or does anyone have any good directions for porting a stock 460 head...
ScottJ is the king of porting iron heads: http://www.reincarnation-automotive.com/

I think its like $20 or something and you can subscribe to his technical database, his site has some freebies but the database has a step by step porting guide with pics with all his tricks. Worth the coin.
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Old 04-19-2006, 10:46 PM   #5 (permalink)
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If you will get heads from the 1993 year and up, they have larger exhaust ports because Ford originally made the ports small to create low end torque, but it held too much heat in the engine, so they opened up the exhaust starting in '93 and later.
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Old 04-20-2006, 04:39 AM   #6 (permalink)
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Quote:
Originally Posted by Bulldog Bob
If you will get heads from the 1993 year and up, they have larger exhaust ports because Ford originally made the ports small to create low end torque, but it held too much heat in the engine, so they opened up the exhaust starting in '93 and later.
Yeah, with Junk chambers and valves


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Old 04-20-2006, 04:54 AM   #7 (permalink)
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Cool site there Perkolator........



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Old 04-20-2006, 05:38 AM   #8 (permalink)
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There is also an article on porting heads at www.fordmuscle.com
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Old 04-20-2006, 08:22 AM   #9 (permalink)
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Quote:
Originally Posted by Bulldog Bob
If you will get heads from the 1993 year and up, they have larger exhaust ports because Ford originally made the ports small to create low end torque, but it held too much heat in the engine, so they opened up the exhaust starting in '93 and later.
Since he said '87, I'm assuming its still a carb'd truck. The '93 & up heads are EFI heads, and will not mate up with any carb intake manifolds easily (well its possible, but I won't go into that.)

I agree the F3TE heads are good, I just built up a set to go on my '88 fuelie, but I don't think they are what he's looking for. Additionally, the ports were not enlarged in '93, but instead the head was redesigned into a 'fast-burn' head. This envolved larger intake valves (2.08 vs the 1.98 of E7TE's), and the geometery of the exhaust ports was changed to increase velocity.

Here are some pics of the F3TE's that I worked over, nothing too radical, but a big improvement over stock. (BTW, I know these are different from the heads your using, but the basic principles are the same):





Sorry for the crappy pics, hopefully you can read the writing on that one, if not just ask and I can sum up what it said.
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Old 04-20-2006, 07:03 PM   #10 (permalink)
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I opened the intake and exhaust ports on my '89 460. I also matched the intake manifold to the heads. Nothing fancy, but it works great. It's amazing how much bigger you can make the ports
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Old 04-21-2006, 01:37 AM   #11 (permalink)
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Thanks guys great responses...Also I was wondering about how much hp/and torque you guys think I will have after I put it all together....I am planning on running new stock size pistons with stock rods and crank....port the heads put in a cam with a duration of 218 deg intake...226 deg exhaust....and for lift .514 intake.. .524 exhuast...its a comp extreme cam...also run a torker 2 intake...some headers....not sure about with carb though yet...what do you guys suggest?? Also this is an engine from an F250 which I am going to put in a landcruiser wagon...was hoping for atleast 400 hp or so....
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Old 04-21-2006, 04:15 AM   #12 (permalink)
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Quote:
Originally Posted by GubNi
Bolt the gasket to it, then use a sharpie to outline the inside of the gasket and take away the extra material. Do the same on the exhaust or intake.
That's gasket matching technically. Not a complete port job. You would take the valves out to port completely and get the most out of it.
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Old 04-21-2006, 04:59 AM   #13 (permalink)
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Quote:
Originally Posted by yotadude77
Thanks guys great responses...Also I was wondering about how much hp/and torque you guys think I will have after I put it all together....I am planning on running new stock size pistons with stock rods and crank....port the heads put in a cam with a duration of 218 deg intake...226 deg exhaust....and for lift .514 intake.. .524 exhuast...its a comp extreme cam...also run a torker 2 intake...some headers....not sure about with carb though yet...what do you guys suggest?? Also this is an engine from an F250 which I am going to put in a landcruiser wagon...was hoping for atleast 400 hp or so....
Torker II?!?! That is a 2500-6500 rpm manifold, if this truck is used for any crawling or general wheeling you'll hate it. The Performer RPM is a much better suited intake if thats the case (Idle-5500rpm).
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Old 04-21-2006, 05:05 AM   #14 (permalink)
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you need a 700cfm or less carb. If you wanna go with an offroad carb, the 670cfm truck avenger is the perfect size
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Old 04-21-2006, 12:58 PM   #15 (permalink)
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With a 218/224 cam, ported heads and aftermarket intake I would run something a little bigger than a 670 or 700. I would at least go to a 750 if you want to hit your 400 hp mark
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Old 04-21-2006, 02:55 PM   #16 (permalink)
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It doesn't matter what intake , cam or what not is on the engine. If he runs about 5200rpms, his engine can only use 700cfm. Bigger carb is a waste of money.
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Old 04-21-2006, 05:21 PM   #17 (permalink)
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thanks for the info on the torker 2....I was just gonna throw it on because I could get one for 100 bucks....but I will take a look at the performer...
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Old 04-21-2006, 05:47 PM   #18 (permalink)
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Quote:
Originally Posted by franky996
It doesn't matter what intake , cam or what not is on the engine. If he runs about 5200rpms, his engine can only use 700cfm. Bigger carb is a waste of money.
Oh it does matter. i build engines for a living, every thing must be in sink. for example if you put a bigger cam in an engine and did nothing to the carb intake heads or exhaust then your wasting money. there will be an increas in power but you wont be making maximum power which is the point of engine mods.
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Old 04-21-2006, 08:23 PM   #19 (permalink)
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Quote:
Originally Posted by Stump385scj
Oh it does matter. i build engines for a living, every thing must be in sink. for example if you put a bigger cam in an engine and did nothing to the carb intake heads or exhaust then your wasting money. there will be an increas in power but you wont be making maximum power which is the point of engine mods.
If you build engines for a living, you should know that a n/a engine can only suck in as much air as it's displacement is. A stock engine doesn't use the full volume. Adding a cam, better intake and headers and porting and polishing just gets you closer to the 100% it could use. 700cfm for a 460 engine is at 100% at 5200rpm. In real life he doesn't need a 700cfm carb, since his engine isn't 100% efficient in filling the cylinders.
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Old 04-21-2006, 09:56 PM   #20 (permalink)
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Quote:
Originally Posted by VerticalTRX
Torker II?!?! That is a 2500-6500 rpm manifold, if this truck is used for any crawling or general wheeling you'll hate it. The Performer RPM is a much better suited intake if thats the case (Idle-5500rpm).
I hear this all the time.But I just don't go along with this theory all the way.I don't think you are getting carried away till you get up in the victor style intakes honestly.I am running a torker 2 on my sb 302.I have not crawled this motor yet but when it was in the stang it damn sure did not just happen to get power at 2500 because that is what the intake says in the catalog.If you make a higher hp motor it will gain power all the way through most of the time.And also how many people have there motors at 1000rpm when crawling up something while in low range.I feel like your motor stays up at 2000 grand plus when crawling because you are in a lower gear than you would be if you were driving.I mean sure when you are crawling around the trail you are at 600rpm's or a little more.But you don't need the power when just driving but when you are trying to get up something you are way up in the rpm's and power band so get the torker 2 for a $100 and if you don't where can I send the money to you at and will you mail it to me to use on my bb that is going in the next rig.

EDIT:Also if it is a trail rig why don't you go with propane then get the higher compression piston's and also don't forget to get a aftermarket roller timing chain for that motor.The guy's at Ford Motor Sport told me buddy that has the late model motor that the stock timing chain retards the timing 10 degrees within the gears.It was done for smog reason's.I don't think you will have a problem getting that motor over 400hp and the same with the tq.You should easily be able to get 450hp and 450tq from it.
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Old 04-22-2006, 11:02 PM   #21 (permalink)
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thanks for all the info...it has all been great and has opened my eyes to the 460 world....thanks guys
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