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DEBATE: diff of gen EA82 Heads
Posted 13 March 2004 - 03:13 PM
I just got off the phone with Aluminum Head Rebuilders (http://www.aluminumheads.com/) in Oregon, they told me that there is no difference between the generation 1, 2, and 3 EA82(T) heads. They have dug into who knows how many EA82 and EA82T heads and have not seen any major difference. They said that there is no difference in the material used or the amount used in the exhaust port area. They said that they all have the same chance of cracking in the exhaust port no matter what gen head it is. (None of this is taken to be a quote, just a summary of my understanding from talking on the phone with them.)
Now we have conflicting arguments. Is the information that I posted in the first paragraph fact or myth? Who is right? What we need is real proof. Is there any documents from Subaru telling the difference in the different generation heads?
Posted 13 March 2004 - 07:21 PM
Posted 13 March 2004 - 07:53 PM
Posted 13 March 2004 - 10:57 PM
So alumnum head rebuilders has a lot of gen 1 heads in stock, by no gen3?
I don't resell any gen1 heads to my customers, and only reuse them if I took them off and they weren't bad at that time.
Posted 13 March 2004 - 11:11 PM
Posted 13 March 2004 - 11:35 PM
There are no differences between turbo and non turbo heads...other than an exh. valve, and the 1-3 side head has some ports to accomodate the turbo oil and coolant lines.
Posted 14 March 2004 - 12:44 AM
Posted 14 March 2004 - 04:45 AM
Posted 15 April 2004 - 02:03 AM
Is there any difference on heads between EA82 with carb and EA82 with MPFi?
I am sorry about my english, because it is not my native language.
Posted 15 April 2004 - 07:24 AM
Posted 15 April 2004 - 01:33 PM
I know Andrew got a set of gen 2 heads from Flowmaster87GL and I looked at the a couple days ago to see if I could port and polish them easily. Well, the water jacket into the exhaust port has a crack in BOTH of them. The passenger side is a lot worst then the driver side but they still have cracks. I couldn't believe it!!
Thats why I didnt charge him (cause I wasnt sure if they were shot or not)
Posted 15 April 2004 - 04:22 PM
It is possible that the gen 3s are "always" in better shape because they're younger and less likely to have as much use on them, but they ARE different at least in the sense that the EA82 stamp on the bottom has changed. Why change the stamp only?
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