As far as I know it's a stock motor with a tdO5h, basic "big bore", chip and about 13psi. Looks likely the thermostat seized while someone else was driving it and it's venting to the coolant now. just wanting to put car back to as stock appearance so you wouldn't know. Plan would be have both motors on stands and then just switch over. Ideally I'd use a stock bc5 motor but if I can't find a good one I will just hide a better sti block in there with the bc5 set up running it. Is this a fair plan?
More info would be great , really appreciate it.