2" Factory Exhaust manifolds

[79bird]

I had the info somewhere and can't find it now. Which year N/A 3.8's came with the 2" exhaust outlets? I have a mildly built 4.1 that I want to put them on. Thanks for any help.

 

[b4black]

1979 and 80 used the larger exhaust manifolds. The '80 might have a boss that can be drilled and tapped for an O2 sensor if you run an ECM.

 

[79bird]

Thanks Rich, I'm debating wether to run a true dual from the manifolds with a crossover or a Y type setup with 2" pipes going into a 2 1/2" single. It'll only be for the street so I think the Y setup might be what I need.
Chuck