Offenhauser 380 dual quad alum manifold. $150

 

What engine is it for ?

 

Clearly not girthy enough for a 400 plus gal, 307-403 as the price reflects.

 

I have no idea, older Olds I think, it was in the trunk of a 66 442 I recently purchased but I don't believe it was for it.

 

You could just measure across the width of intake and tell weather small or big block. my guess is big black- who would buy a dual quad for a small block? Anyway that is cool! Seams to me worth$150 as a wall hanger...?

 

^^^THIS. 12.5" for a small block, 14" for a big block. And look again, that's an Offy 360, not 380.

 

Pretty cool! GLWS

I'm surprised that it's a spread bore intake manifold. Big block or small block you'd have to have a built engine to use 1500 cfm of carburetion. Do they make Quadrajets smaller than 750 cfm?

 

Offy made both square bore and spreadbore versions of these intakes.

 

I have seen dual quad Q-jet manifolds before.....in fact, I have one in the garage now. 1500 CFM seems like plenty, but do the secondaries on both carbs have to open completely ? The "air doors" (secondary air valve) relies on spring tension to help meter fuel at WOT.

 

PM sent!

 

I believe it's been sold. Thanks

 

Sold sold sold