ANY ONE GOT 4 HEAVY DUTY ENGINE MOUNTS FOR A 200 HP DIESEL AS THE CUSHYFEET I HAVE CAN NOT TAKE THE FORE AND AFT THRUST AS WHEN I PUT HER IN ASTERN THE ENGINE TRIES TO TWIST TO THE SIDE AND SHAKES.
First stop is the engine manufacturer. They'll have a reccommendation for the mounts even if they don't market some themselves.
With a 200hp installation, I'd have fitted a thrust bearing to the shaft...the problem may be that you do have one and the mountings on the thrust bearing have failed...nothing to do with the engine ones , although it always pays to check these mounts themselves as well. 200hp engines are big buggers so I'd be inclined to replace all the mounts if i had to have the engine out for any reason.