[67S390]

I need help trying to figure out what type of 427 engine I have. I was told it was a side oiler but I’m not familiar with the 427’s. This engine came with a 1967 Mustang S code 390 car that I had purchased some time ago. It’s missing the carburetors but have a factory 67 Shelby GT500 C7ZX-9425-A intake manifold. It has screw in freeze plus and a 427-26 casting inside the engine block. The caring date appear to be a 2 L 17. Thanks