No pump, so I'm guessing I've got a rebuilt A engine (by someone) with a good head. Did a compression ck on it last week got 82# in 3 cyls and 72# in no 3 hole. Currently going thru thru a stop leak cycle hoping for a quick cheap fix, and then I'll tap the oil pan and see what comes out. I was told the engine was rebuilt in the late 80's and the odometer was zeroed out, now has 1,674 miles on it and it runs strong.