My understanding is these are hard to find....


I'm thinking this is something of a unicorn...

I've been watching for one of these, since my left side manifold leaks, and my exhaust is "sub-optimal". I was hoping to find a dual exhaust manifold and redo the exhaust to full duals. Ebay for about $400. I'm hoping it's "as advertised"...

 

I didn't see that one on E-Bay anymore.
Perhaps it sold.
Here's another one;
1963 1964 Oldsmobile Left Dual Exhaust Manifold Starfire 98 63 64 | eBay
$400 seems about the asking price now. At least this one includes the heat riser.

 

It's sold because I bought it! I guess I'm going with dual exhausts... it's only another grand, more or less anyway...


This thing looks pretty good for a 60 year old exhaust manifold, I think


Check out those ports


Can you say "Clean"?


C'mon- I know you can... say it with me....


"Clean"... that's right, just like that....


oh so clean.... the threads are even clean. Clean threads- don't you love clean threads?

So- stainless steel or aluminized? Is SS worth 2x the price? I can get aluminized exhaust for about $700, SS is easily $1300. I'm thinking OEM sound- quiet. It's a big old car, after all. Who would delete the resonators for a louder exhaust? Just curious- I'm almost certainly going for the factory sound

 

If it is garaged, kept out of salt and isn't short tripped, aluminized will last a very long time. Stainless has a different sound to me, aluminized may sound different also but I've not noticed a difference.

If it is a HC engine the duals will sound great and still good if LC.

Please post audio/video when completed.

 

You will also need a heat riser if you hope to connect to a stock exhaust pipe.
There is this one here;
1963 1964 OLDSMOBILE DUAL EXHAUST MANIFOLD HEAT CONTROL VALVE GM 588008 NOS | eBay

You will also need a large mill file to file the flange absolutely flat, so it mates to the heat riser without leaking.