Anyone know if someone makes a intake manifold for a 340 for a 4 barrel. I wanted to switch from 2 barrel to 4 barrel but cannot find the intake for it. Im having trouble finding alot for it and am now more then ever considering swapping the 340 for a 455. Thanks for any help.
Joe

The 340 had a stock 4 bbl manifols as well as the 2bbl. I dont think there is any aftermarket 4bbl for the 340. Try advertising for a stock 4bbl in the parts wanted section of the classifieds on this site or other Buick websites.

Thank you for the information, it was very helpful.
Joe

ya im searching for the same thing... and so far no luck