I tried looking to see if anyone has used anything like this but all I found was bolted adapter plates. Is there a reason not to use a universal weld in mount like these. Way early in my 67 Camaro ls project and just doing early leg work. Looks to take up less space than going with the common adapter plates but maybe there is more reasons?

http://www.ebay.com/itm/LS1-LS6-GEN-3-UNIVERSAL-MOTOR-MOUNTS-STREET-ROD-RAT-ROD-/331042692015?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d13ae9baf&vxp=mtr

 

Depends on how tall it is.
I had to add spacers to my motor mounts (with the adapters) due to the different factory combos (3 I think?) in 67-69 so my oil pan would clear.