Nikis have small engines but not that small:-) Unfortunately i haven't got any engine blocks only a few bits from memory one piston and a set of rings, a crankshaft, a used timing chain and probably also a valve lifter

so i'm afraid i can't help much there. I'll let everyone know that i'm travelling next weekend so i don't have a lot of time to order parts,some parts if ordered locally take a day to arrive.