Low oil pressure in ZL-1

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**iluv69s** · #12 03-11-2009, 09:43 PM

Probably not the problem, but I bought an all rebuilt ZL1 motor and when dynod it had problems similar...The builder forgot to put in the 2 extra studs in each head that are only on a ZL1 motor...water was mixing with the oil and we had poor oil pressure when warmed up...after fixing problem, the motor dynod at 603 HP with LOTSSS of oil pressure!!! Bolts can be used if you cannot find the correct studs....but they need to be drilled and wiretied after torquing....hope that helps...good luck!!

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