I'm required by state law to install a CC on my 75 280Z. It was removed some time ago by a previous owner. Any idea what it looks like so I start hunting ?

 

Thank you,

https://www.rockauto.com/en/catalog/nissan,1976,280z,2.8l+l6,1209226,exhaust+&+emission,catalytic+converter,5808

Yes Thank you, I bought that very cat last week, now I'm trying to find the Heat shielding. My 75280Z had it's cat deleted and it now has the resonator in it's place. I did find out that the car doesn't have a oxygen sensor, so that is not a problem, but the muffler is about to need replacing so I'm not sure about some of the exhaust systems parts. It's 47 years old , so . . . . ?

So does the cat you bought have shielding on it? Are you looking for the shielding that was above the cat, between the cat and the tunnel ?

I'm sorry I was drawn away, yes I'm looking for the shielding above the cat between the cat and the tunnel.

Edited January 30, 20223 yr by Killain

I dont recall ever seeing that shielding. Maybe somebody can post up a picture.

You could possibly fabricate a replacement if you knew what the original looked like

https://www.carpartsmanual.com/datsun/Z-1969-1978/engine-280z/exhaust-tube-muffler/california

I found this diagram hard to read. I couldn't tell what was directly clamped to the cat and what was mounted to the car. I searched for part #66 but it looks NLA

 

Edited January 30, 20223 yr by Patcon

First, are you really in Pennsylvania? Does the car say it is a California spec or Federal spec? Only the California spec should have a catalytic converter. 

Anyway, look at part #68 on this page: http://www.carpartsmanual.com/datsun/Z-1969-1978/engine-280z/exhaust-tube-muffler/california

Oh no, I live just outside Philadelphia and the car was bought in MI and as far as I now know, it was in Michigan for all it's life till I bought it, but this car has a real 51907 miles on it. There isn't a single trace of rust. It's 2+2 but considering it's condition I would be an idiot not to buy it. I'm not sure, but I don't think it's a CA car. But here in PA, if it is newer than 1974 it needs to have the emissions equipment on and working.

5 minutes ago, Killain said:

Oh no, I live just outside Philadelphia and the car was bought in MI and as far as I now know, it was in Michigan for all it's life till I bought it, but this car has a real 51907 miles on it. There isn't a single trace of rust. It's 2+2 but considering it's condition I would be an idiot not to buy it. I'm not sure, but I don't think it's a CA car. But here in PA, if it is newer than 1974 it needs to have the emissions equipment on and working.

 

Very nice looking Z.  If it was always in Michigan, it must have spent winters off the road and in a garage.

I doubt it ever saw rain for that matter. How do I tell if it's a federal or California car ?

Hoping I can help.

I have a California emissions 280z. Pulled off the exhaust a while back, because I don't need a cat in AZ:)

Anyways the entire exhaust assembly is sitting in the backyard of my dad's house collecting rust. Used to be in good condition, now might have some surface rust, figured no one would want a CA emissions exhaust.

Anyhow, which shield are you talking about? The one that protects the driveshaft from the cat? Or there is a shield that is clamped to the cat itself to help protect the car. Hoping I still have that somewhere in case that is what you need/want.

Lucky I still have this photo. Took it, because I thought it was cool that the entire exhaust system could be removed in one piece. Notice the heat shield that clamps over the cat itself.

Here is a photo of the shield that protects the driveshaft from the cat. Notice my cat is now removed so...