Thanks for the input all of you.

The reason it is so cheap is that some girl who was getting a divorce has been stopping in my buddies speedshop and bringing them all kinds of stuff that her ex had in the garage. The block was on an engine stand, and they offered her $75 bucks for it, as they really didn't need it, but hey, I guess she didn't either.

My old block is a 2 piece rear seal block, as stated by the numbers I posted, and this is a 1 piece rear seal block. I put a bore guage in the holes and they are all dead on 4.030.

I am aware of why the oil presure is low, well, shouldn't say that because the block isn't apart, but I know what causes low oil presure. Maybe it is only the pump spring, but I have a feeling it is more than that because when I bought the car it was set up with the incorrect plugs and the carb was SUPER RICH. I don't beleive in tuning cars by ear ( I work at a Lexus dealer) so I am pretty anal about fixing/doing things correct the first time, which is why I am doing the research on this block. I know it is only 75bucks, but I have to spend too much on parts I don't have, that would defeat the purpose. Plus I thought it would be nice to put this engine on a stand, order the bottom end, put it together and then pull my engine and swap heads, oilpan, front pieces, ect and have the job done over the weekend.

When I put the car on the dyno a few months back, I managed to get 21hp extra out of it by DE-jetting the car and backing down the timing from 45 total to about 34, which is how the speed shop that built it and tuned it had it set up. I also let up on the valve lash a few thousands, but I forget exactly where it ended up.

Which also I should bring to your attention, I have a scope I use as a bore scope. Not a snap on type, but it is what a doctor uses to look up your nose. Super clear picture, and when I stuck it in the spark plug holes, the tops of the pistons are a mess from all the detonation from the original tuning before I bought the car, so I am betting that there was so mush fuel being dumpped into the engine that is thinned the oil and caused bearing failure.

What do you think of my suggestion on the new parts verses the current parts for the engine?