Thread size of "filter, gas, no. 1" on 2JZ intake manifold

adampecush

Regular Supramaniac
May 11, 2006
2,118
3
38
Edmonton
anybody know the thread size for the gas filter on the 2JZ-GTE intake manifold? I'm using that port for my PCV system and wanted to be sure of the size before ramming in the wrong size threads. It looks to me like a 1/8 thread, but I'm not sure if its NPT or BSPT.

Adam