360 Exhaust Manifolds

[money pit]

I have a 70 barracuda. I'm installing a 1974 360 without exhaust manifolds or headers. I want to install exhaust manifolds. Are the exhaust manifolds for a 340 or 360 the same for 1970 to 1974? I found a pair on Ebay. The driver side casting is 3416621, Pass side 3418623. The ad said it's from a 72. When I check the references online it says the right should be 2863549 for an e body. Thanks in advance.

 

[moparleo]

341 8 621 not 6621 for 71 340 . 3418623 for 71-73 340 . Both will work fine for the later 360 . No such thing in 1970 but same dimensions.

 

[moparlee]

Here is a complete listing.

 

[money pit]

Here is a complete listing.
View attachment 55489

Thank you very much for the info. This really helps. Happy Holidays.

 

[quapman]

While all 70-74 E body small block exhaust manifolds will interchange, 70 manifolds are completely different. They look and flow better, but naturally are way more expensive than the later ones.

 

[aussiemark]

I have a LH manifold casting number 2863553 I am in Australia but on the plus side the Australian dollar is crap at the moment PM me if you are interested.

 

[quapman]

If it was a right, I'd be all over it.

 

[money pit]

I have a LH manifold casting number 2863553 I am in Australia but on the plus side the Australian dollar is crap at the moment PM me if you are interested.

Thanks for the offer. I just bought a pair.

 

[aussiemark]

What castings did you get?

 

[money pit]

What castings did you get?

Drivers 3416621, pass 3418623

 

[aussiemark]

The left must be 3418621 they are both 1971 manifolds the 1970 manifolds would flow a bit better.