oil drain hole size

[Instro84]

anyone know what the size of the hole in the block for the oil return is?

 

[michael evans]

anyone know what the size of the hole in the block for the oil return is?

1/2 inch pipe thread

 

[Instro84]

thanks Mike

 

[Ernie GN]

1/2 inch pipe thread

Just The information I was looking for

 

[earlbrown]

it's also NPT not NP.

 

[salvageV6]

.703" for the win.