what is the biggest motor con i put in my 1993 chevy caprice

5.7 L L05 V8 (350) or 5.7 L LT1 V8 either will drop right in. You can go even bigger but much more expensive and more parts will need to come with a bigger engine, like ECU and such

This 'vette motor will go in too if you have the money and ambition, the stock 350 above is 225hp, this one pictured here is 375hp, naturally aspirated.

Oh....this one is just plain beautiful. I wouldn't want to oil on it it's so nice ..click on it to see how really a sight to behold it is

I have a 93 Chevy Caprice with a 305 5.0 engine I want to know what if I got to change to put a 350 5.7 l in my car

Get a crate 502 Chevy if big is what you want. Won't pass smog but you will have power to spare.