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?