C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Size of 3 way heater oil connector

Old 07-10-2019, 08:17 PM
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Default Size of 3 way heater oil connector

Been searching forever it seems to confirm. I have replaced my coolant system kind of piece by piece and do not have any leaks.
I cannot confirm the tee that goes to the water pump/heater core/oil cooler. I want a metal one and would like to have it ready,
I think it is 5/8 x 5/8 x 3/8 does anyone have there's apart to confirm. Mine has been cleaned up a few times but I want to replace it.
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Old 07-10-2019, 10:34 PM
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T is what I used on my 89 when I replaced coolant hoses a few years ago. The size for mine was 3/4 x 3/4 x 5\8.
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