Exhaust Manifold?

[1966er]

I'm sure this has been discussed in the pass.....but will 340 exhaust manifolds fit on a 66 Coronet 273 engine?

Or am I stuck with the original manifolds? If they do fit, what year exhaust pipes will fit my car?

Are all 340 manifolds the same, (A & B Bodies), & do they dump out at the same location as the 273 manifolds?

BTW, it's an auto trans, no PS.

Headers are "NOT" an option........

I just want to increase the size of the entire exhaust system to either 2 1/4" or 2 1/2"

Forgive my ignorance, as I come from many years of GM cars.

I'm just trying to get knowledge on MOPARS.

 

[tallhair]

I'm sure this has been discussed in the pass.....but will 340 exhaust manifolds fit on a 66 Coronet 273 engine?

Or am I stuck with the original manifolds? If they do fit, what year exhaust pipes will fit my car?

Are all 340 manifolds the same, (A & B Bodies), & do they dump out at the same location as the 273 manifolds?

BTW, it's an auto trans, no PS.

Headers are "NOT" an option........

I just want to increase the size of the entire exhaust system to either 2 1/4" or 2 1/2"

Forgive my ignorance, as I come from many years of GM cars.

I'm just trying to get knowledge on MOPARS.

sure you will get a definitive answer soon enough on this site but if A engines are anything like B's the dump varies by year but any exhaust shop can connect them up relatively cheaply ... i always go looking for the mom and pop types not midas etc.

 

[RustyRatRod]

Yes they will fit. You'll need to go to an exhaust shop to get the pipes custom bent.

 

[1966er]

Yes they will fit. You'll need to go to an exhaust shop to get the pipes custom bent.

Thanks....I kinda figured a visit to the exhaust shop......

 

[RustyRatRod]

Are they the early or late manifolds? If they are the early ones, they will both accept 2.5" pipe right off the manifolds.