The only thing that I can think of is maybe no coolant flow around those cylinders causing the cylinders to heat up and seize the rings to the pistons. I'd think that if it was an oiling issue you'd lose a bearing before you'd weld the rings. The machine shop should have hot tanked the block which should have cleared the coolant passages. Does anybody know if it's possible to put a head gasket on incorrectly and block coolant flow? I know that was possible to do on certain V6 Toyotas and it would cause an overheating problem that was a bear to diagnose...

 

thank a lot, will check it, BTW which pistons tops is best for my engine which
use magnacharger on it-29cc or -16cc, or any other
one, please guys advice

 

guys waiting for answer : what is the best for my engine pistons top, to use with
magnacharger on it-29cc or -16cc, or any other
one
thanks in advance, i think 9:1 compression is good for charger

 

I'm not an expert in this area but a quick search showed many threads like this one.

Try putting in search for "compression FI charger" or other such terms.

https://www.performancetrucks.net/fo...for+fi+charger