Ok, I need to figure out the oil situation first then. I have a Pontiac manual, which states that it need 4 qts and 1 more for the filter. I put 5L in, which is like 5.2qts. The engine came with a dipstick and tube, which wasn't installed, but I was told is the original. I replaced the tube with one almost of identical length, using Deve's instructions. 5L takes me to the 'Low Oil' mark on the stick. From bottom of washer to tip, it's 15-3/4" long, 14" to the 'Full' mark. The tube is about 8.1" long and sits 7-3/8" from block to tip. The way it sits, it feels like it needs one more quart, but I'm concerned about over filling it. This engine is out of a Pontiac, and I have the letter from GM stating that. Perhaps someone put a truck pan on it at one time?