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May 04, 2025, 18:04:31 pm

Author Topic: Converting to closed cooling and replacing the front water bypass joint?  (Read 1161 times)

Sammamish Skier

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I'm trying to simplify the plumbing as I move to closed cooling, and I'm wondering if anyone has attempted to change out the front water bypass joint and thermostat housing so that I don't have to combine the two hoses from the thermostat cover. 

The bypass joint seems to be pretty common part #  1635550070

The thermostat housing is what I'm not sure about, it appears that our engines likely mate with part #1603250110  which is from the 4.3L motor.

Anyone out there attempt this?