I'm working on a 1957 Pontiac 347 engine. I found the oil filter canister in the trunk of the car, 4 door Starcheif hard top. It had the long bolt, an old dirty metal filter, but that was it. The canister is not flat like the Chevy's that I know. It has a dome on the end with a drain plug. I bought the new filter but it seems like there are some parts missing. I'm sure if I install it just like that, the oil will bypass the filter element through the dome. I'm thinking there is some kind of oil blocker with a spring maybe or some other type of setup that goes there. Does anyone know about this? Where I can find the answer or parts. Or maybe how to fabricate something that can substitute the original. Any help will be greatly appreciated!