i just bought an ls1 to swap into my 4.3 silverado. it is just a longblock(water pump, intake, fuel rails, injectors, internals). what would i need to get this up and running? also, would my 4l60e hook up to this and hold or will i need a new tranny? it did not have an oil pan either. would i be fine with a stock ls1 oil pan, or would i need something else to fit my truck?