What is this "engine stopper" mount?

[no eye deer]

I am looking at engine mounts and came across this

http://atocauto.com.au/proddetail.asp?prod=11225_10J07

.What is it? What does it do?
Never seen one of these.

Mark

[mudygq]

hey mark...to be honest i only just found them today...pulled engine and gear box out my donor car...and these were in it...first time i have ever seen them

[nissannewby]

I have them in mine they basically strengthen then original mount and be rubber bonded as well take more vibration out as well

[no eye deer]

Thanks fellas,

do they go under-over -between the mount?

Maybe I'll look in my manual.
:0

Mark