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Bored&Stroked · 10-28-2024, 10:13 AM

Also, I can't remember if the front of the 8BA manifold will allow the 59AB road-draft system (coming up from the pan - to the front tube in the block) to operate correctly? The tube needs to have access to the valley area - which is where it pulls the combustion gasses from. Truth be told the original 39 - 48 road-draft system is pretty "weak" in its design, so you might consider a PCV setup (documented various places here) - such that you have a good functioning crankcase breather setup.

10-28-2024, 10:13 AM	#3
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,910	Re: 8ba manifold on 59a motor Also, I can't remember if the front of the 8BA manifold will allow the 59AB road-draft system (coming up from the pan - to the front tube in the block) to operate correctly? The tube needs to have access to the valley area - which is where it pulls the combustion gasses from. Truth be told the original 39 - 48 road-draft system is pretty "weak" in its design, so you might consider a PCV setup (documented various places here) - such that you have a good functioning crankcase breather setup.