As said you will need a frst/2i head there the same and so are the inlets just one sensor different. Frst loom and ecu and a 2i/frst fly wheel then you have to drill a hole for the crank sensor where the block join's the gearbox as the sensor pick's up the marking's on the back of the fly wheel i converted a s2 block for my frst it's not hard to drill the hole but you will need a number of drill bit's and the crank sensor from a 2i/frst I have a frst engine loom for sale give me a pm