I haven't got the seal kit yet but that's what I'm expecting Tim.

Thanks Jerry, I'd seen a video of someone using a Kent-Moore tool as you describe using your machined piston. Having not done one before (on anything but a stove door) I'm just not sure how much of the seal should end up proud prior to installation of the bearing cap back in the block? I'm assuming its got to be proud of the metal surface ready to be squashed as the bolts tighten?