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Undo the rad and make it the highest point in your system and be positive there is no air in the system. The rad lower than the highest point could have air in the engine. Once it's bled 100% for sure it can be put back.
Fan shroud to make sure all air possible is pulling through the rad.
what is the possibility that the fan isn't big enough to pull enough air through the radiator? Maybe by a small pusher to put on the front and keep the puller on the back side....?
Is it possible that you used incorrect head and/or intake gaskets on both engines and they are blocking coolant ports?
I think that you've changed just about everything except for the intake manifold, that seems to be the common denominator. Is it possible that a coolant port in the intake is clogged?
Did the distributor change fix your problem?
that is the fan I used on my sedan and its way more powerful than most of the economy fans , but it's three times the price .
Hey Greg, what amp fuse did you have to use with that fan? The 20-amp that came in my wiring harness blew instantly. Will installing a larger amperage fuse (50 amp) jeopardize my wiring or relay?