Name that distributor

Looking for some help in ID’ing a distributor (one on the left). The one on the left has a W1218 printed on the side of it but a google search turns up nothing. I believe it is an MSD but didn’t know if it was an small block or big block. I think there is only a 1/8” difference between the two in the length under the mount. Any help with an actual part number would be great. Just looking to see what it is worth.

I've seen units like that on Ebay; I think they're made in China, but I could be wrong.

MSDs are billet. That's a Chinese cast deal you can buy for $50. Shipped.

https://www.ebay.com/itm/Dodge-Chry...Electronic-Distributor-HEI-/252772764128

440Source used to sell a distributor that looked like that. They actually worked okay, just really ugly. I think there is an HEI setup inside that hump on the side.

I think Davis ( DUI ) did something similar for other brands.........using HEI parts.
They may have done MoPar too , which wouldn't surprise me any more than a design being appropriated by a Chinese operation.

I had to look........most of the Davis stuff I see is traditional coil in cap HEI.
I swore I saw one with a side pod arrangement , but maybe it was someone else's.

That's not a DUI distributor, at least not the type I've seen. Those DUI hei distributors nearly need a hole in the hood to clear them. Absolutely the ugliest distributor made for a mopar.

that is a $39.95 imported swap meet special. see 'em all the time. the hump on the side contains a GM four connector HEI module.

To answer the OP's question, $35-40 on ebay if you pay the shipping.