oil type and oil pump

[fixkick]

its NPT thread, and not BSPT.

its usa threaded not British tread 27 TPI into 28TPI hole (tpi is threads per inch) its one pitch sizes too coarse.
if you force NPT in a PSBT hole it can strip out the block threads there and they are very very fine treads

they sell and adaptor for this.

https://fastfittings.com/search?q=28860

or only buy British sensors.. in BPST,

id hate to see you do damage, (lots of guy just force it in and can get lucky) it scares ,me after all it's the main oil gallery.