Hi, I just recently purchased a 72 240z with no transmission, I have sourced a working 4 speed, and got a 240mm flywheel, and clutch kit, slave and master from 78 280z 2+2 (no one seems to sell a stock replacement small flywheel). I don’t have an engine block plate, the one that goes between the block and transmission. Do I need that to run the car? Or is it just more of a dust shield?