I've bought myself an engine crane and stand as I'm looking to rebuild the old 428 which I took out of my cobra. Unfortunately, the engine stand has a plate with four adjustable arms which each have a 40mm tube spacers which you bolt through to the engine to hold the engine. I need to buy some 70mm bolts to bolt through to the spacers to the bell housing, the existing bell housing bolts are too short. I've tried everywhere locally to buy these without success, does anybody know what the thread is, it's not a metric thread so I,m assuming a whitworth or af thread.
Vince