anyone know what size and thread the hole for the oil switch just above the oil filter is on the LG4 engines, i need to remove and plug this on mine before i stick it in the car since i plan on running headers since i cant figure out how the stock y pipe goes, it isnt pointed right i dunno what the deal is


thanks

 

1/8 NPT

 

well that was easy, same as the AIR tubes lol



thanks

 

The AIR tubes are actually a non-tapered tube flare, IIRC... the threads might be similar enough, though.

 

yeah not tapered but they work anyways, tight fit

used the 1/8 NPT plugs for the AIR tube holes many times

thanks

 

FYI i went to ge a plug and 1/8npt is too small for it and 3/8 npt is too large

its actually 1/4 npt
but air tube ones are 18 i know, done its million times

thanks