I hate to show my ignorance but if I dont ask I wont know. When i upgrade my valiant to the supersix will I also need to change the exhaust manifold?. I hadnt considered it so if do I will obviously need to buy one..thanks Mark

No difference year-by-year in the 1bbl vs. 2bbl exhaust manifolds.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

thanks Dan.!

The only difference between the two is the choke stove pocket on the 2BBL. It has a cutout and the 1BBL does not. If you don't intend to use the thermostatic spring choke, it won't be an issue.

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70 Valiant Super Six

1bbl and 2bbl choke pockets are the same year-by-year. All \6 exhaust manifolds made since model year 1973 have the same (open-side) choke pocket.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.