LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Anyone have ported head pics they would like to share?

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Old 10-05-2010, 10:14 PM
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Originally Posted by Puck

Those are right after being milled so they have a little residue on them. They are not mirror polished, but very slightly textured, almost like leather.
Nobody goes thru the effort to do that. Whats the numbers like?
Old 10-06-2010, 12:15 AM
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Originally Posted by Z8'S
PolyDyn Thermal coating.
Ahhhh, the mystery is solved. I new it was a strange *** finish but found no reason to question it. I've only really heard of that being used on pistons. Its grippy like 1500 grit wet sandpaper, but smooth to the touch.

Originally Posted by fex77k
Nobody goes thru the effort to do that. Whats the numbers like?
I assure you, with enough money people will go through what ever effort you want them to. I am expecting somewhere between around 600hp NA on my build, but I have no hard numbers yet - I am chasing an ET more then a HP number. FWIW Desktop Dyno claimed 638hp(yea, right ) with a 242int LE4 HR cam, but I expect that number to be optimistic even though I will probably run a larger cam then that.

For less bench racing, and numbers they have already made, I think they made somewhere around 1100 on a 383 with a pair of hair dryers on them IIRC. Wasn't my build so I don't know all the specifics.

Originally Posted by whytryz28
Also at the back are the steam tubes or whatever, how do you guys get those bolts off, I couldnt and start to round one off, thinking about cutting in half and re doing it another way.
Its been a while, but think i used a monkey wrench to get mine off with the heads out of the car. I remember the passenger side head's steam pipe bolt being a bit of a pain in the ***, and a plain wrench stripped it.

Save the cash and don't bother with the way overpriced dealer replacement bolts and pipe - you can either be super cheap and use pipe fittings and high temp rubber hose, or NPT fittings and braided line for them. All you need is two lengths of hose(one short from one head to the other, one long for the other head to radiator), an "L" adapter for one head, and a "T" fitting for the other.
Old 10-06-2010, 02:04 AM
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Old 10-06-2010, 05:41 AM
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My AI 200cc heads with 54.5 cc chambers
Attached Thumbnails Anyone have ported head pics they would like to share?-2010_0301aiheads0002.jpg   Anyone have ported head pics they would like to share?-2010_0301aiheads0003.jpg   Anyone have ported head pics they would like to share?-2010_0301aiheads0009.jpg  
Old 10-06-2010, 06:25 AM
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Originally Posted by tbird31
^^ who did yours? Why didn't you go back in and hand blend? Just curious.
Off topic.. But I want to make sweet sweet love to your car...


Giggity
Old 10-06-2010, 08:27 AM
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Originally Posted by Puck

Its been a while, but think i used a monkey wrench to get mine off with the heads out of the car. I remember the passenger side head's steam pipe bolt being a bit of a pain in the ***, and a plain wrench stripped it.

Save the cash and don't bother with the way overpriced dealer replacement bolts and pipe - you can either be super cheap and use pipe fittings and high temp rubber hose, or NPT fittings and braided line for them. All you need is two lengths of hose(one short from one head to the other, one long for the other head to radiator), an "L" adapter for one head, and a "T" fitting for the other.
Gotcha, yeah the passenger side is giving me a problem
Old 10-06-2010, 08:44 AM
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Those AFR's looked great..
Old 10-06-2010, 03:49 PM
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Heres some AFR 210 competetion ported heads and then sent off to A.I for more porting




Old 10-06-2010, 06:16 PM
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those afr 210s are ******* sexy
Old 10-06-2010, 09:50 PM
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ya that look ok
Old 10-07-2010, 12:51 AM
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Here's my old heads. I lost the ones of my Ai heads when my pc crashed but they look like any other Ai 200cc head out there.

Old 10-07-2010, 10:24 AM
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Some sweet pictures in here, I'm drooling.
Old 10-07-2010, 12:32 PM
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Here are my 185cc EB Porting Heads:


Old 10-07-2010, 01:33 PM
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Originally Posted by speed_demon24
Here's my old heads. I lost the ones of my Ai heads when my pc crashed but they look like any other Ai 200cc head out there.

Uh?? Did those perform okay??
Old 10-07-2010, 03:49 PM
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Those look like monster runner volume !!
Old 10-07-2010, 04:22 PM
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they look different from one another
Old 10-07-2010, 05:57 PM
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I won't say anything...
Old 10-08-2010, 08:32 AM
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Originally Posted by RamAir95TA
I won't say anything...
do they not?
Old 10-08-2010, 11:53 AM
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Those heads must not flow that well?
Old 10-08-2010, 12:02 PM
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Pretty sure those are LE heads.


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