Go to Fastenal buy a 3/4"-16 bolt grade 8 and make your own.
Also are u sure you need the angle adaptor. the new shorty oil filters will fit most aplications.
Hahahah. I want to see you drill STRAIGHT down 3” down with a 3/8 bit into a grade 8 bolt.And then cross drill it. I hope you are kidding. yes, HP manifold. Must use the adapter.
