Motor Mount Adapters 4 a 4.3??

I am picking up a 90 K1500 next week and I am trying to get all the parts I need together for my 5.3/4L60E swap. I have a complete running and driving 99 Silverado 4x4 as a donor truck. I have been reading through the site and wondering what motor mounts would work best for my application. The 1990 K1500 has a 4.3 to start with. I have read that some plates have the engine forward and some backward. I guess that I would like the 5.3 to sit where a normal 350 would and was wondering what mounts work the best for that. Here are some that I was looking at.

CAR SHOP C/S 2370 LS1 LS6 1" CONVERSION SETBACK PLATES $49.99 BUY ONLINE
CAR SHOP C/S2349 LS1 LS6 CONVERSION MOTOR MOUNTS ADAPTER PLATES $45.95 BUY ONLINE
CAR SHOP LS1GM LS1 LS6 CONVERSION MOTOR MOUNTS ADAPTER PLATES $45.95 BUY ONLINE
CAR SHOP C/S2348 LS1 S10 Motor Mounts $59.95 BUY ONLINE

Thanks for the help

get the motor mounts for the v8 in that year truck. so a 1990 350 engine mounts on the frame and the brackets on the motor. Than you have to order the adapter plates that bolt to the 5.3 motor and the brackets bolt to them. I got mine on ebay. search for ls1 mounting adapters.

Josh

Advanced Auto parts sells the adapter plates.
And the "frame mounts" ie the rubber mounts for 350
Then you need the steel cups (aka bracket), i guess they sell those too?? Or maybe dealership.

Thans for the info. We deal with Advanced Auto at the shop so I will try there. I guess these keep the engine in the "stock location" The rubber mounts are no problem, and the steel cups are all over the shop from other projects. Would you happen to have the part number for these adapter plates at Advanced Auto?

Another swap related queston. What else easily swaps between trucks front/rear diffs, fuel tanks, ect?

Thanks again.