Re: 80s Ford F150 300-6 put 2 or 4 barrel carb on stock motor??

Posted by Hal/WA on April 20, 2003 at 12:38:22 from (208.8.194.47):

In Reply to: 80s Ford F150 300-6 put 2 or 4 barrel carb on stock motor?? posted by Walker on April 17, 2003 at 00:44:27:

Unfortunately there is no free lunch. To put a 4 barrel on just about any 6 (except the rare nowdays Pontiac OHC), you need to get a 4 barrel manifold from the aftermarket. They are costly and usually need a kit for installation. And you still have to buy the small 4 barrel carb and air cleaner.

It might be possible to adapt a 2 barrel carb to a modified factory manifold. I would do it with a bolt on aluminum adapter and probably enlarge the throttle bore opening as much as possible. Aluminum carves very easily. There might even be a ready made adapter in speed shop catalogues. There were lots of fair sized, uncomplicated 2 barrels made in the late 60's and early 70's that you could probably get almost free. I would get the air cleaner that fits the carb too. If your trucks are stick shifts, this would not be a very complicated modification, but lots tougher with an automatic.

I always thought the 300 Six did very well in stock form, at least in a fairly light truck. If you really need a lot more power, it might be easier and cheaper to put in a V8 than to modify a 6 to get equal power. I would check transmission compatability first though. Good luck!

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