Reply to "Weber Carbs"

The carb size is 48mm. Weber sells two different models of 48mm two-barrel downdraft carburetors for this type of application; the taller 48 IDA which is a racing carburetor; or the more compact 48 IDF which is a more street friendly carburetor. There are 3 manifolds to choose from.

(1) There is a manifold manufactured by Hall Pantera for 48 IDA carbs that mates to the 351C with 4V heads. I've never seen this set-up installed without removal of the engine screen and a notch in the rear deck.



(2) There is a manifold manufactured by Aussie Speed for 48 IDF carbs that mates to the 351C with either 2V heads or 4V heads. With the right air filters this set-up will fit below the engine screen and deck.





(3) There is a manifold manufactured by Redline for 48 IDA carbs OR (with adapters) 48 IDF carbs. This manifold mates to the 351C with either 2V heads or 4V heads. Due to the height of the adapters I suspect this set up will require removal of the engine screen and a notch in the deck regardless of which carburetors are used.



There are several threads in the engine forum covering the subject of these carburetors, and independent runner (IR) induction in general.

-G