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John E · 10-31-2019, 03:21 PM

I've always poured the AF into the block by removing the hose after the thermostat and pouring the AF into the block there. My experience is limited to inboards with GM blocks. I also believe you don't "need" to fill the block with AF, as long as you drain the block and manifolds properly.

10-31-2019, 03:21 PM	#6
John E Senior Member Join Date: Dec 2006 Posts: 58 Thanks: 2 Thanked 8 Times in 5 Posts	I've always poured the AF into the block by removing the hose after the thermostat and pouring the AF into the block there. My experience is limited to inboards with GM blocks. I also believe you don't "need" to fill the block with AF, as long as you drain the block and manifolds properly.