73 Clamshell Motor Mounts

[cgster]

After reading multiple on top of multiple threads about which motor mounts/adapter to use for an LS swap on 67-72 trucks I have decided to go with a 73 clamshell mount and the dirty dingo sliding adapters.

Is this the correct 73 clamshell mount that they refer to?

http://www.ebay.com/itm/73-87-Chevro...1WEGv4&vxp=mtr

Also, is there anything else required besides the clamshell mounts and the DD sliders to mount the engine in place?

Thanks.