Manifold casting location

[70dart318]

i have a 1970 dart with a 318. It is originally a 318 car but have no idea if it is the original motor and manifolds. I have no exhaust just the manifold. I've been trying to find either a y pipe or dual head pipes. But have been asked what the casting number is and I don't know where to look for that. Any ideas? Thanks

 

[Treblig]

They're usually on the inside (engine side).

treblig

 

[70dart318]

They're usually on the inside (engine side).

treblig

Is there an easy way to get to see it?

 

[Treblig]

Is there an easy way to get to see it?

Not without removing the manifold. I've never tried to read the casting number from underneath the car. they fit pretty close to the engine and there's other stuff in the line of sight.

treblig

 

[70dart318]

That's what I figured and that's lame. Makes piecing together a exhaust set up pretty hard. Don't wanna have to pay for a tow to take it down to a exhaust shop