[Stang951]

Do you have underdrive pulleys also?
I just remembered that I was told that the underdrives could be contributing to my problem. I dont think that is true, but who knows. Yes the pulley bolts are different also, my friend drilled new holes in my brand new March pulleys to get it to fit on the water pump that they originally got.
You could also check to make sure that you put the head gaskets on correctly, as they could impede water flow. Look at the block where the heads are bolted in the very front. You should see a suqare from the head gasket. If the square is on both side they are both on correctly.


I wonder if there could be blocakages in the the heads or intake causing the water to flow too slowly?


I am thinking of tearing down the motor to dig into it because I think that something may be wrong. Next time I flush the cooling system I am going to try and force the water through with a hose and see how fast the water flow is through the block.
Mine scares me too, but those are upgrades that I was going to do anyway,......just had to do them sooner.

BilLster - yes the housings are the same, bt the position of the actual pump in the housing is different. If you place the two side by side you will see that the 351 pump is set in the housing farther up toward the left and the 302 pump has the pump located lower to the center.