The same or not

[Frank Dinatally]

I am sure someone knows
I have a 68 Fury that has a 360 LA motor in it. The exhaust manifolds are from the 318 that was in it. One of those has a broken flange after 10 years. Question is wil used from 318 or 273 or 360 fit for me to put on?
Thank you as always

 

[RustyRatRod]

True 273 manifolds have smaller ports, so I would not recommend those.

 

[Frank Dinatally]

thank you

 

[413]

Get the casting number from it and find a duplicate so your pipe will bolt up to it.

 

[RustyRatRod]

@Kegan B I think you can help this guy out.

 

[RustyRatRod]

Frank, if you don't mind redoing your head pipes, I think @Kegan B can help you out.

 

[Locomotion]

Where the exhaust manifold bolts to the rest of the exhaust system can vary in location, angle & size, depending on engine, year and original body it was in. The resto people may have more details on which castings may interchange. If there is a casting number, you can post an ad for that specific part.

 

[Frank Dinatally]

so 273 and 318 will not interchange 2465769

 

[RustyRatRod]

so 273 and 318 will not interchange 2465769

I don't know much about casting numbers....and the 318 might even have the small ports. Some of these other guys will know for sure. I would stick with 340/360 port size manifolds at least.

 

[Frank Dinatally]

Found this little tibbit Now am really confused

 

[Kegan B]

@Kegan B I think you can help this guy out.

Driver side would be quite different, better off using a B/E set more than likely or possibly even mag ones since it's a driver rear exit.

 

[Kegan B]

I don't know much about casting numbers....and the 318 might even have the small ports. Some of these other guys will know for sure. I would stick with 340/360 port size manifolds at least.

318 are smaller port but if it's a stock 360 not the biggest issue.

 

[RustyRatRod]

318 are smaller port but if it's a stock 360 not the biggest issue.

Thanks buddy. I didn't want to give him wrong info.

 

[Kegan B]

Thanks buddy. I didn't want to give him wrong info.

Found my darn list lol. 273/318 are 1 5/8" port with 2 1/4" outlet vs 340/360 1 7/8" port and 2 5/8" outlet