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

Can someone identify who CNC ported these heads

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Old 04-24-2011, 12:34 PM
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Default Can someone identify who CNC ported these heads

Here is the stamping ID on these heads, I have been unsuccessful on identifying who ported them.
Old 04-24-2011, 05:45 PM
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Show pictures of the runners.
Old 04-24-2011, 06:04 PM
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before the heads were cleaned
Old 04-24-2011, 06:11 PM
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It's hard to even tell from those pics if they were even hand ported or cnc'd. Need better pics.
Old 04-24-2011, 06:24 PM
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I hope these help. If not ill go to the shop and take some more



Old 04-24-2011, 06:25 PM
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Originally Posted by BOLO
It's hard to even tell from those pics if they were even hand ported or cnc'd. Need better pics.
+1.

Usually CNC heads leave obvious ridges, like this:

My AI heads:

Old 04-24-2011, 06:28 PM
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i posted one you could see, they are above your post. the heads were used so the ridges aren't as noticeable as your fresh heads...
Old 04-24-2011, 07:11 PM
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I can see the ridges in one of the pics; I don't know who did thim, but I can tell you they are not AI or even as good looking as some of LE's hand done stuff.
Old 04-24-2011, 07:19 PM
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Looks can be decieving, throw them on and see how it runs
Old 04-24-2011, 07:22 PM
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Originally Posted by gregrob
Looks can be decieving, throw them on and see how it runs
thats the plan. I do know that they are 200 cc runners I had them cc'd. Im not a huge fan of flow numbers as they dont tell a whole lot. BTW gregrob, I got your aluminum plates done, just waiting on the stainless hardware to arrive and then they will be all done.
Old 04-24-2011, 07:24 PM
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Pimp
Old 04-24-2011, 08:41 PM
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Originally Posted by henry172
I can see the ridges in one of the pics; I don't know who did thim, but I can tell you they are not AI or even as good looking as some of LE's hand done stuff.
I have personally seen two sets of le1's and these heads will flow better than le1's and i have half the price of what le1's cost in these. but hey, ill post results here within a month. so we will all know.
Old 04-24-2011, 08:54 PM
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If you picked them up at a good price; must be under $500, you did well.
Old 04-24-2011, 09:07 PM
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Originally Posted by henry172
If you picked them up at a good price; must be under $500, you did well.
sure seems like your telling me if i payed more that 500 for them i got ripped. FYI they have 200cc runners with 2.00 and 1.56 valves, which I will bet my paycheck will outperform le1's. Just seems like your being really condescending while looking at pictures and not seeing the heads in person. So if you are, dont post in my thread anymore, if your not please clarify why the would not be worth the 650 i paid for them.
Old 04-24-2011, 09:10 PM
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They're worthless, IMO, without flow numbers. Everything in this thread is a guess, unfortunately, including how you think they will perform.
Old 04-24-2011, 09:15 PM
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Originally Posted by RamAir95TA
They're worthless, IMO, without flow numbers. Everything in this thread is a guess, unfortunately, including how you think they will perform.
Cool, glad my setup is worthless. Maybe I should have busted out 2 grand for ai stuff like you. Ill just start from scratch. And really, ive seen awesome flow numbers out of heads that just don't perform. Flow numbers are only ONE part of the equation.
Old 04-24-2011, 09:20 PM
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My Tea Heads were CNCd and then they touched them up by hand... They also come with double springs....

Idk throw them on and hit the dyno then the track and you can come back and say "hey it told you so" or.. "Damn these heads suck"

Matt
Old 04-24-2011, 09:22 PM
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Originally Posted by green96ta
Cool, glad my setup is worthless. Maybe I should have busted out 2 grand for ai stuff like you. Ill just start from scratch. And really, ive seen awesome flow numbers out of heads that just don't perform. Flow numbers are only ONE part of the equation.
You are absolutely right flow number aren't everything....However I have NEVER seen a Set of AI heads that don't perform stellar!

AI stuff is worth the 2k...
Old 04-24-2011, 09:22 PM
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Originally Posted by green96ta
Cool, glad my setup is worthless. Maybe I should have busted out 2 grand for ai stuff like you. Ill just start from scratch. And really, ive seen awesome flow numbers out of heads that just don't perform. Flow numbers are only ONE part of the equation.
I am not trying to insult you, so calm down.

Would you install a camshaft without knowing duration, lift, lobe separation, etc? Take the extra step to have them flowed to see what they're capable of. Just because you think they look nice doesn't mean they are world-class heads. In all likelihood I'm sure they'll work fine, but wouldn't you like to know the full story on them? Sure, flow numbers aren't everything, but they're still incredibly important.

I did not say your setup is worthless. I said the heads are worthless (in my opinion) without knowing more about them. Don't get so bent out of shape over my opinion...why take the chance?
Old 04-24-2011, 09:44 PM
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Originally Posted by MattSapp95_T/A
You are absolutely right flow number aren't everything....However I have NEVER seen a Set of AI heads that don't perform stellar!

AI stuff is worth the 2k...
I agree, their stuff is absolutly awesome. However, my issue is I dont have 2k to throw down. So im making due with what I do have. Besides, im not trying to achieve low 11 high 10 passes on motor, which ai stuff will do. Im looking to make mid 11s which I think is completly possible with my setup.

Originally Posted by RamAir95TA
I am not trying to insult you, so calm down.

Would you install a camshaft without knowing duration, lift, lobe separation, etc? Take the extra step to have them flowed to see what they're capable of. Just because you think they look nice doesn't mean they are world-class heads. In all likelihood I'm sure they'll work fine, but wouldn't you like to know the full story on them? Sure, flow numbers aren't everything, but they're still incredibly important.

I did not say your setup is worthless. I said the heads are worthless (in my opinion) without knowing more about them. Don't get so bent out of shape over my opinion...why take the chance?
I already bought the heads, the only reason there would have been to flow them would have been if I was going to get a custom grind cam. I went with a cc306, which im sure I will get flamed for. The reason I chose that cam is because even with something as small as le1 heads there have been guys hit mid 11s with this cam. Id like to hit 400rwhp, but in the end its track times that matter most.


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