Difference between NA and ET Head

Joined: 3:52 AM - Mar 26, 2016

7:17 AM - Aug 14, 2016 #1

Hi Guys

What is the difference between a NA head and ET.

I know the exhaust studs are bigger on the ET but is there anything else different.

Any info would be really appreciated
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Teejay
Teejay

2:37 AM - Oct 21, 2016 #2

Cam gears are 7 degrees different in the timing also but afaik cams are the same.
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