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Print in friendly format Send this term to a friend  4L60E
1994-1996, the 4L60 with Electronic Control. From what I have seen, it seems a bit more durable....
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Re: I need more air...........

Subject: Re: I need more air...........
by Weavsvet on 2010/6/27 14:50:59

Quote:

Aboatguy wrote:
I'd be more concerned with the fact that the headers/gaskets...blocking part of the exhaust ports..


I posted this on the other site...
AFAWIK blocking part of the exhaust port is going to hurt your performance... IMO time for headers that fit ....IE header opening are same size or larger than exhaust port...
Mike


I've asked this question before and the answer usually was I don't need different headers. But I also included the phrase "should I get 1 3/4 instead of 1 5/8 like I have now"". But getting 1 5/8 headers to match up with the size of the AFR port may be difficult. To me it would seem having the exhaust port match the header would be just as important as the intake matching the head. But what do I know.........

I also asked the question about the intake being the problem and the answer was that it was not because of one of these pressure readings. I'd have to go back and find which one though. I may be mistaken but I swear I read on AFR's website that they recommend the LT4 Air Gap as the preferred intake with these heads I have.
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