Header question

[Av8ferg]

Hey, I’m on a work trip in Southern California and was searching the classifieds and stumbled on a set of headers for sale.  Guy wants $100.  He’s parting out his L28 for an engine swap.  They look stainless but might be coated, can’t really tell. 
Not sure if it’s a good deal and I really can’t tell what kind they are.  The look like either the Pacesetter or MSA 3-2.  They have two O2 sensor bungs too.  The add says N47/N42 engine setup but the pic  shows round ports to me and exhaust liners but maybe I’m not seeing it right, 
$100 seems like a decent deal since the MSA ones are $369.  BTW, was considering driving to MSA and picking up headers curbside and save on shipping if I didn’t get these used ones.   I called the store and the guy said he recommends the 3-2 headers.  His comment was 6-1 better for highway driving and 3-2 better for stop and go power?  He wasn’t helpful at all.  Also said exhaust portS were different on N47 and P79 heads (said something about diamonds shape).  I thought they were the same and he told me “No”. I think he’s wrong but I’m no expert.
Heres’s a pic of the headers for sale. 
Can anyone identify these headers and will they work on my P79 head? 
Thanks

 

[7tooZ]

Can’t answer question but a 100 is so cheap you should bye able to get all or most back if you decide you don’t like them.

[siteunseen]

They don't look my msa ceramic headers. They won't turn that blue color like your pic. They look like ss to me and if the flange up top is the same thickness as msa's which matches the intake thickness just right  I think they look good for $100.

[siteunseen]

Maybe n42 block and n47 head? They look round compared to my n42 square port header. You can see the squareness on mine. Sorry i don't have my laptop handy. Look at the pics on msa's website maybe???? Good luck with it.

[siteunseen]

Thats a diamond for a p79, 99.99%.

Lowest opening...

 

[Av8ferg]

Thanks, I sent the guy a message and he said they’re round port.   Some photo investigation (shape of center flange) they appear to be pacesetter ceramic coated headers.  Pacesetter doesn’t sell SS only black or ceramic coated. 
 

you can see the flange is exactly the same. Different on the MSA, 

It comes with the Y pipe too.  For a $100 I don’t think I can beat it.  New ones are over $400.  If they suck Ill sell them.  
 

 

Edited May 15, 2020 by Av8ferg

[Zed Head]

Round port should work fine on a P79 head.  The P79 and the N47 both have exhaust liners that are smaller than the hole in the head casting.  It's the liner opening that needs to match and it's round.  The liners are designed to get really hot and burn off carbon and, maybe, excess fuel and oil.  Keeps the exhaust system, and the exhaust cleaner.

The first picture in this link shows the port.  You can see the liner in it.

http://xenonzcar.com/s130/Heads.html

[siteunseen]

You can get these Nissan manifold gaskets still. Dealership gets them overnight down here. They have distribution hubs in MS and TX.

Here's the part #. Thanks @gwri8

 

[Av8ferg]

Thanks Cliff. I’ll order one.
 I can’t wait to see the looks I get when I drag this header and Y pipe through the company hub.  I’m also picking up some louvers too. 

[siteunseen]

Put some flowers in it, tell them it's for your wife.

[Av8ferg]

Picked up those headers today.  They were never used, so this was a good deal.   Time to finished this engine build next week.  

[S30Driver]

Can't beat that deal!   If they work out, I can loan you a PLX wideband o2 kit with gauge to see what your afr is when you get the motor in.