So I picked up this dual quad manifold from Ebay to use on my 292 and I would really like to find out some more about it. There are several casting numbers, one looks like a date, but nothing that points to a manufacturer.



Can anyone help me out with this?



Thank you in advance.



Here's the manifold from above.







and the casting that looks like a date, 5 28 57







Here's the bottom







and the casting numbers that are on the bottom - S - and what looks like - ECG9424-D-









'64 F100 Custom Cab LWB 292 Y Block (work in progress)

'93 F350 4X4 Crew Cab SRW 460 Big Block

'05 Eddie Bauer Expedition on Saleen wheels

'04 Jeep Wrangler, mi burro... where do I start?

here is some info from a TSB

I re-typed it here as when I scanned it the site shrunk it to near unreadable.



SUPERCHARGED ENGINE IDENTIFICATION (1957 Cars and Thunderbird)

The major differences between the two types of supercharged engines, currently available through production, are listed below for identification purposes.

A. Supercharged engines are normally built with the standard camshaft (B7A-6250-B) and single valve springs.

B. Domestic Special Order (D.S.O.) supercharged engines are built with a high lift camshaft (B7A-6250-C) and use additional dampener springs.

C. The only method of positively identifying the two supercharged engines without removing the camshaft, is by measuring the camshaft lobe lift. The camshaft lobe lift is 0.272 inch (intake valve) on the standard camshaft and 0.290 inch on the high lift camshaft. (refer to the 1957 Supercharger shop manual for additional service information).



marv

Here is info on the EDB high performance cam

marv