The oil filter on the blacktop is mounted on the back of the block like a CVH, The silvertop oil filter is on the oil pump. Thats just one of the easy to notice differences

The blacktop rocker cover isnt plastic like people think, I bought a fire damaged blacktop, All of the plastics around and on the rocker cover had melted, The rocker cover was still in tact but had warped and cracked from the heat