I don`t know what to say , I see this All the time , we take apart engine with 50 miles on them that are screwed from bad assy & machining most of the engine I see I get called to fix After paying someone else to built it then I have to give them the bad news that the whole engine needs rebuilding yet again . I did one this spring I assumed was just a ring problem with a new engine using a lot of oil , nope 4 pistons were installed int he wrong holes , so 4 bent valves , the block was honed too large so we had to replace the block , the pistons were rocking in the bores , piston ring gaps were lined up too , wrong valve springs were instalkled on Indy heads damaging both the heads & reatiners , numerous problems all costly to fix ... luckily he had Only paid over $6000 for machining & assy , he had already purchased most of the parts
