Clubman reincarnated

[GTSPhil]

Hi Dion

First things first, this is a relatively stock standard engine, no mods to the head or valves, standard camshaft and flywheel was just cut clean and balanced. So for this application the County pistons and Grant rings are fine. I am speaking under correction, but I must have built about 8 engines now with Grant rings and have not had a problem yet.

Naturally on my GTS I am running AE Hepolite pistons with the oil holes and not grooves and proper Goetze rings.

When a engine refresh is done and the pistons are not being replaced, I have even used FPR rings, but same as above not for modified engine use, up to so far. What the local suppliers carry and what I can get on short notice also play a role obviously.

I think the bottom line is many people just worry about the thickness of the rings from top to bottom and not also the thickness from inside to the outside. I have found various sizes and always ensure they are correct size from inside out.