I'm putting a 94 Lt1 into a 83 trans am, which motor mounts would work. the motor mounts off the 94, or can I stick with the motor mounts for the 83.

 

Better to use the '83 mounts, with poly inserts from Energy Suspension

 

I just did this swap on my 85 Z28. Use the third gen mounts but while you are there upgrade to the poly inserts. I went with solid mounts and it may be a little rough for alot of street use.

 

I run solid mounts, but my engines are balanced to within one gram. GM engines are nowhere near smooth enough. Using solid mounts requires using LocTite on every fastener of everything attached to the engine. Do NOT try solid trans mount.

 

^^ def go that route. solid mounts are gonna shake ur car apart (not literally). I have a mildly built LTx motor in my car and you should see the amount of engine torque while its idleing, i could only imagine what that would feel like with solid mounts.

 

there are mounts for the swap on hawks third gen they are by spohn and a lil pricey i just got mine they are nice.. i was also told in 3rd gens u can use the standard 350 mnts if u have then but i am not sure i have read u can but i think most use the hawks mnts..

 

No need for "swap" mounts with an LT1.