Re: Plugging heater core hoses
After Googling a little, looks like my block is an 880 series, so must have the bypass built in, as those blocks began production in '86 or '87. When I drain the radiator, both the intake and water pump drain as well, so I have to believe that it has a bypass built in that connects the two together. That said, I have Vortec heads, and have read that they do not benefit from the internal bypass? Can anyone explain that a little better?
67 Black RS Coupe, 383, M21 & 10 Bolt Posi. Edelbrock E-Tech 170 Heads, 2204 Roller Cam, Air Gap Intake.
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