Looking for a front big block Chevy single engine race mount original merc steel not after market

https://www.ebay.com/itm/386165817579

thats for a twin engine application............^^^^^^^^

I think I may have what you need, I took them off my 1977 30ft scarab, they were Sbc but I don’t think that would matter, they are black painted steel, I suck at loading pics I could text a pic from my phone, I switched my boat over to Volvo penta 290 from the trs. Soooo they are just yard art to me so will sell dirt cheap, they are fairly large and heavy steel so shipping will not be super cheap, otherwise how about 50 bucks for them, I can text or email pics from my phone

Oops mine is from a twin application too it looks similar to one on eBay but can text/email pic

This is what I have