Is it pretty easy in the car? Is it just the 4-5 9/16" head bolts or does the two 7/16" head ones need to come out too? Just dropped my son's 400 back in his '73 SSP yesterday (it was out so we could replace the torque converter, front tranny seal, and power steering gear box, to stop LEAKS!). Well, now that it's back in, it looks like the oil pump is leaking. Thought it was the new filter we had put on, but after replacing IT, I can see a steady drip off the back of the pump -- it's not coming from the filter. I'm about ready to douse the damn car in gas and light it on fire out in the desert -- but gas is too expensive to waste.