Sealed power single moly or Speed pro single moly plasma, either is a good choice. Be aware a different bore finish is required for moly rings than required for cast rings.
Ta for that, didn't realise about the bore hone - I'll ask the machine shop about that as they did this engine bore work. What is the difference anyway?
Sealed Power and Speed Pro are the same company (even their logo is virtually identical), just marketing products under different labels, like laundry detergent manufacturers do... They come under the massive Federal Mogul umbrella which have been around since before the First World War I think. And Fed Mog in turn are owned by Tenneco. So it would be interesting to get all the piston rings manufacturers and go up the chain and see just who owns who. Might be interesting.
