Think this engine is swapped into some Panteras, someone I know had a sparkplug blow out like a bullet, apparently this is a fairly common problem according to brief internet research. Wondering if anyone here has experience repairing a sparkplug hole on one of these, apparently it's a special shaped hole for a special shaped plug. TimeSert make a kit, but it's like $600. Thanks, GD Think this engine is swapped into some Panteras, someone I know had a sparkplug blow out like a bullet, apparently this is a fairly common problem according to brief internet research. Wondering if anyone here has experience repairing a sparkplug hole on one of these, apparently it's a special shaped hole for a special shaped plug. TimeSert make a kit, but it's like $600. Thanks, GD