Want Pictures: 273 w/ 90-degree Oil Filter Adapter

stop the beast said
LOL, ...The 90-adapter wasn't a factory option was it?

They came on all "A" body small block from 64 thru 71. I'm not sure when they stopped, but have had and worked on many during "the day".
The new filter system started in 1972 according to the Chrysler racing manual.