a tape measure might help a little. by " Frame pads" do you mean motor mounts? you could drill corect size holes where you need them, drop just the motor in to see where they need to be then pull it out, but you need to measure to make shure the engine will be mounted center of the car and angled 3 degrees back for proper instalation. I'm not even shure what olds motor your using other than it's a V8, if it's the motor from your '72 Cutlass, I have to assume it's a 350 Rocket. I'm also assuming that you want to get rid of the V6 or 267 V8 in the malibue, if it's a 267, woulden't bolting a 350 in place of it be much easier, the mounts and stock transmission bolt up cause there both SBC's.