Make the right choice!!!!
VQ swap and get more torque and HP than a stock KA or SR!!!!!!
Hell you can swap a Q45 diff into the s-chassis and get even better gas mileage with a VQ than a KA and SR.... Lots of torque and displacement are your friend.....
VQ is newer technology, higher compression, and overall more efficient do to it's technology. It will also fit into the S-Chassis with the right mounting......