Low oil pressure in ZL-1

[Alss]

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Ok so I just read your post about the motor is back together and everything is fine now. So what was the final problem and what about the heads?
Mark Sheppard

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had two problems with the motor..both my/machinists fault. First was the missing oil pressure reg that presses into the block and the other was the three missing plugs that are in the lifter valley..the oil press reg is different than the kind in the older blocks..I forgot about it you would think that at 5K or more GM could have included the oil pressure reg ( my cost 3.61 ) and the three valley plugs..all the other plugs come with the motor so why not those three..anyway a little hard work..a litle money (new bearings to be safe) and I am all good to go.

The heads..well thats another story..it seems that some one who did the machine work on these heads before I got them drilled the stud too deep and drilled right thru to the heat crossover actually drilling out the divider between the water passage and the crossover..no easy fix!!.I sealed off the crossover with a piece of stainless shim JB welded to the head followed by some good sealer and a intake gasket with no crossover hole..held pressure and should not leak..I will be keeping an eye on this but I dont think it will cause any problems..time will tell. Ran motor up tp operating temp..set timing..as soon as the roads are dry enough (we had snow this morning!!)I will begin the road tests..motor really liked 16 degrees initial advance and another 20 in the distributor..using a new MSD distributor that has a digital curve..no springs!!..so far so good..well see after the road test. Thanks everyone for their help and support.

ALbert