ok fair enough. I am only looking for 200bhp or there abouts. I believe these would be good for that no?

Dont suppose you've got a block?

My situation I have is I have a mk2 escort and I've fitted a 2.1 zetec turbo with unknown pistons in and it looks like one of the rings is leaking oil so I'm wanting to build up another engine to swap in to get the car running so I can fanny around with the one thats in there.

So, I've got a good head (we've just rebuilt it) and obviously the sump is bespoke.

So all I would need is a standard bottom end and crank....