^I guess I'm just better off scrapping it for the 250 then? The car rarely ever gets driven seeing as I don't have a license so it's really no skin off of my nose. I just want to get to the bottom of it. I love to learn soemthing new everyday. I can feel the knock when I put my hand on the front bank VC but not the rear. After feeling around with it running it feels like most of the knocking is comming from either the #2 or #4 piston. Would dropping the oil pan give me easy enough acess to see if I indeed roasted a rod bearing. I'm about to take it apart just to take it apart to see what I find. I don't work so it'll give me something to do. One last question. Say it is a rod bearing on said piston I don't need to take off the other head to get the troubled piston/rod out right?