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It's a breather system for the engine. Long before the invention of the PVC system they used these in the early years to allow the engine to breathe. I have seen people remove this and cap off the hole behind the distributor with a correct size freeze plug. That hole originally had a pipe that was directed down toward the bottom of the engine that put the expelled air under the car. You would have to come up with a PVC or breather system in the valve covers to totally eliminate the canister you are pointing at. Take some time to read up on SBC PVC systems to see what would work best for your conversion.
Hope this helps
That device is a liquid/vapor separator (regardless of what anyone else called it), and all SBs through '67 have one. If not the engine is going to be puking a lot of oil out on the road via a road draft tube or into the inlet manifold if it has a PCV system.
I'm just curious, but why are you installing a big port, single plane manifold, essentially a racing manifold designed for big port heads on an engine cammed for maximum power from 5000-up on a small port head 283?
That device is a liquid/vapor separator, and all SBs through '67 have one. If not the engine is going to be puking a lot of oil out on the road via a road draft tube or into the inlet manifold if it has a PCV system.
I'm just curious, but why are you installing a big port, single plane manifold, essentially a racing manifold designed for big port heads and cammed for maximum power from 5000-up on a small port head 283?
Duke
I was told this was a good manifold for high revving engines like the 283s
OK I might have solved my own problem , I found an old cast Iron manifold in the barn ( 3844459 ) I think from a 327 fits right on and it has the breather cap on it also. My goal was to get rid of the 2 barrel It was damaged during storage Now I can use a quadrajet
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