The Blue Box
Well-known member
So recently purchased a built 200 from ebay. The previous owner had installed oversize valves in it along with a 2v conversion, milled head, decked block and a cam. Upon running the engine (ran pretty bad) i decided to pull the plugs out to read them. The first one i pulled was crimped shut by the valve. It was definetely the valve and not the piston. (i observed it with a probe camera) and the valves looked ok (no cracks or anything.) And only some plugs did this due to where the electrode was positioned when the plug was tightened. ( about half were messed up to an extent.) Does anyone make a shorter plug or recessed electrode plug for the ford sixes?