OK, here goes, get the award ready for most stoopid question 'cos its mine I tell ya.

A while back I bought a Sealey Engine stand and now that I have an engine to play with I want to bolt it on. How?

I thought you used the bell housing bolts but these are no where near long enough. I suppose I will have to buy some to suit, anyone know what size I'll need?

Take your bellhousing bolts to a bolt and nut stockists, and tell them you want a metre of studding the same size, some large washers to suit and some nuts. Then cut suitable lengths of studding and screw them into the block (as far as they will go), put the bracket onto the studding and apply washers and nuts, then lift block and bracket onto the stand.
While you are at the bolt place buy a Zeus book. This little book will, with the aid of an inexpensive calipers, help you to identify threads. For our purposes there can only be metric, UNF or UNC, so it won't take you long to work out which thread you have. Then next time you go you can walk up the the counter and say "10 2inch 3/8UNF set screws please" (or whatever) and the guy will be so impressed he will give you discount. They usually will anyway if you show them the cash and say you don't need a receipt.
John

Paul,

I, too, have invested (£35 from Screwfix) in an engine stand, and like you found engine/bellhousing bolts far too short. So, today, I walked to my local motor factors and said:

"Got any of these, only longer?"

They had various lengths, so I got four a bit longer, and another four longer still -for two quid. As my engine stand is in same location as engine (three miles from home) I couldn't measure exact length req'd, but for £2, I 'm not worried.

Simon

Both ideas sound fine - I used studding aswell but just be carefull when you cut it. On my Valencia engine two of the holes didn't go all the way through (does that make sense?) so the studding was better in my case although it'll probably cost you a bit more.

Chris