Offenhauser Manifold ID

I picked this up at a sale and was wondering what years / app it would fit. I'm pretty sure its Chevy. Any info is greatly appreciated. Here's some pics:

 

Looks like it's for a 216 but what do I know about chebbies. lol

 

Looks like an Offy intake, 2x1 BBL for 235, 261

but I could be wrong.

 

That's what I think too.

 

Since it's nice and clean, check out the underside of the heat riser area---there should be a number in there. 1034 for a 216, and 1035 for a 235.

 

I am with Saxman and K mike but it looks like heathen has the best info for an exact ID

 

She's got a "1035" on the underside, so it must be for the 235. Any idea what years they made these for?

Thanks for all the info and people chiming in.

 

'50-'62.

 

You are my hero

 

Mine as well!! Thank you!!!

 

Praise is nice, but money is better.

 

They are $240 new at Langdons.