photomike

Hey everybody! I'm trying to find a 4 bbl adapter to use a modern flange Holley on an old small square four barrel manifold.

I'd appreciate any help with this.

Thanks Much!
Mike
815-714-4309

Oldsguy

Welcome to CO. So you are saying the bolt locations are different, or the diameter of the four holes are smaller, or both? I think I have seen an adapter for that purpose but may be confusing the square bore to spread bore adapters which are common.

wolfman98

hang in there someone will know what you need. though a little more detail will help. hey Oldsguy beat me here too

Olds64

That is going to be tough. I am sure someone will know if there is a part that will work for your application.

photomike

My manifold is a stock 324 4 bbl manifold with small square four pattern. I want to put on a Holley 600.
Thanks!

Run to Rund

I know what you mean. I thiink the bores in the manifold may be big enough for the small Holley, but Holley uses a more spread out mounting bolt pattern, still 5/16 x 18 thread I believe. you just need an adapter that goes from the tighter square pattern to the larger Holley pattern. I don't know if Mr. Gasket still makes them. Here is one link that might help; otherwise do a search for carb adapters.
http://www.summitracing.com/search/B...s/?Ns=Rank|Asc