I just did this swap but took out the Buick V-6 for a 350 Chevy, Is that vortec heads I see? if so it's a good choice, yes monte carlo motor mounts and clam shells. Everyone told me I would have to have my A/C unit on the drivers side but I found a serpentine belt system out of a 89 Chevy truck with the A/C on the passenger side and all the brackets that I needed for a complete serpentine belt system, alt, water pump, power steering brackets If you got a good junkyard in the area it might help for this. With the serpentine belt system you'll have to have a reverse flow water pump because the belt turns it the opposite direction. Fuel line is on the wrong side, either run a new one along the passenger side or crossover under the frame in front.