^^^ yeah that goes to heater core, one of the spots you can block off but the head and block have to be looped. This is the best way, AN fittings and a short loop, it will also be cushion clamped to the motor. You don't wan t to be in the middle of an event and tear a heat hose line, and the stock piece for this has about 5 sections any one of which could leak.
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