Muskeg Tractor 318 exhaust manifolds

[how610]

I am still looking for a pair of exhaust manifolds for a 1966 chrysler 318
in my Muskeg Tractor.

 

[aulen2002]

different from the 318 dodge that was used... forever? Try local junkyards?

 

[lonewolf]

I dont think there are any exhaust manifolds for 318 engine in bombadier in existence. I had to custom manufacure mine. It took a little time but works well. Used 1.25 inch square tubing for them. Square headers basically.

 

[Blackfoot Tucker]

I am still looking for a pair of exhaust manifolds for a 1966 chrysler 318
in my Muskeg Tractor.

This is a major memory test, but here goes:

Chrysler actually built two completely different 318 engines. I believe the changeover occurred in the '65-'67 time frame. The first was the "Poly" (short for polyspheric) It's an "A" block engine. The latter 318 was in the "LA family" which had the 273, 318, 340 and 360 variants.

It may be a challenge to find manifolds for a "poly" engine. The latter 318 was produced in huge numbers and should be fairly easy to find in salvage yards, though unusual manifold designs may also be tough.