My son and I just installed the pistons on our little MGB's motor. They're not quite finished as I need to tighten the nuts on their connecting halves to 25 ft-lbs and the nuts are these strange, octagonal things. I can get them to about 14 ft-lbs before the socket starts to slip. I'll be doing some research on this tonight and will attack it tomorrow.
My gaskets won't be in until Monday, which means I won't be continuing until next Friday. Even so, the crankshaft and the pistons are the hardest parts. The rest should be smooth sailing.