[orange bahner]

Anyone know the size of the hole over the oil filter on the side of a BBC where the oil pressure sender attaches Not sure if it is 3/8 pipe or 1/2 pipe I need to order fittings
THANK YOU

 

[Blowncat 509]

older 4 bolts are 1/2" npt, most 2 bolts are 3/8npt, could be either, not knowing what block you have you better just go look

 

[stix818]

If I'm remembering correctly my bowtie has a 1/2" and a 3/8" pipe.. I'll have to check and verify that.

 

[Blowncat 509]

If I'm remembering correctly my bowtie has a 1/2" and a 3/8" pipe.. I'll have to check and verify that.

wish I had a bowtie.........

 

[orange bahner]

Thanks guys did some meassuring looks like it is 3/8 pipe