I am almost finished with my 261 swap into my 40 sedan. My 261 is a 62 model and came with the large full-flow oil filter can hanging on the manifold. I do not have room for it with the engine in the 40. It looks like I will have to fabricate a hose from the outlet on the block back to the inlet so the oil can circulate. I know the ports cannot be just plugged.I wish I could use the 235 filter , but it only has 1/8" pipe inlets and outlets and could not handle the volume of oil .