This is topic 1 5/8" vs. 1 3/4" shorty headers - What is the real difference and is it worth it? in forum Tech Talk at Northern California Ford Owners .
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Posted by 7-Up Man (Member # 8345) on
:
There is a fellow Norcal member selling MAC headers and they are 1 5/8" ceramic shorty headers. Do the 1 3/4" ones perform that much better? Are they worth the risk of no CARB OE number?
Any help on this would be great
Posted by ALLSOFASTGT (Member # 7845) on
:
i got 1 5/8 on my jba headers i think long tubes come in 1 3/4 dont they
Posted by 7-Up Man (Member # 8345) on
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I went to check out the headers that this member is selling and MAC offers both 1 5/8" and 1 3/4" shorty's. Just want to know if I am really limiting myself with the smaller headers. or will smog be a big concern with the big ones.
Posted by 2stangs69-91 (Member # 1951) on
:
Big ones are not smogable. A friend of mine did get his 1 3/4 mac equals by a smog tech he brought the EO number for the 1 5/8...told the tech his plate fell of the 1 3/4's lol. I run mac 1 5/8 equal shorties on my 91 and it has run in the 10's so you can make power with them.
[ November 20, 2008, 08:14 AM: Message edited by: 2stangs69-91 ]
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