1964-1967 283
Thread Starter
Teching In
Joined: Dec 2014
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From: Utah
1964-1967 283 I bought a rebuilt 283 (3849852 stamp on engine) from a guy but he couldn't find all the exterior parts like the dipstick. There was no carburetor and so no vacuum lines. I am trying to figure out where everything goes and here is a picture for starters. I need to know what this is for.
On The Tree
Joined: Sep 2013
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From: ill.
Trying to remember what they call that, a "drift tube" or something like that.
It's the forerunner of the PVC valve. It should have a tube that runs under
the motor to vents the crank case. It's runs under the motor because it
would drip oil. When I had my 65 El Camino with a 283, I sealed it off
with a freeze plug and ran vented valve covers.
Hope that helps
It's the forerunner of the PVC valve. It should have a tube that runs under
the motor to vents the crank case. It's runs under the motor because it
would drip oil. When I had my 65 El Camino with a 283, I sealed it off
with a freeze plug and ran vented valve covers.
Hope that helps
Thread Starter
Teching In
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From: Utah
Hi nofun
Do I need a freeze plug or can I just leave the rubber plug on it?
When you say vented valve covers do you mean having a cover that needs a PVC valve. and then were does the hose for the PVC valve go too.
Thanks
Rocky
Do I need a freeze plug or can I just leave the rubber plug on it?
When you say vented valve covers do you mean having a cover that needs a PVC valve. and then were does the hose for the PVC valve go too.
Thanks
Rocky
Thread Starter
Teching In
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From: Utah
I was doing more reading and found that you can put a PVC at the base of your carb and put a hose over to the "road draft tube" that is what they called it. And then you don't need vented valve covers. What do you think?
Staging Lane
Joined: Sep 2012
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From: Virginia Beach, VA
Your picture is that of a fresh air pickup for air from inside the stock air cleaner on pollution-controlled small journal SBC's. (For non-pollution-controlled vehicles, the hole was used to mount the road draft tube as mentioned above.) The PCV valve screwed into the the oil filler tube at the front of the intake manifold, and was connected by a rubber hose the carburetor's base plate. Parts are still available; however, most of them are reproduction pieces for Corvettes from vendors like Paragon Corvette Reproductions .
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Joined: Sep 2012
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From: Virginia Beach, VA
If you use a late model PCV system in the valve covers, you'll need to welch plug this hole.
While you could connect a hose to this part and insert a PCV valve to the other end of the hose with the outlet from the PCV valve to the carb, you would still need to add some source for fresh air to balance the system. (I've seen guys put a breather cap on the oil filler tube, but this solution just pukes out oil on the intake if the internal engine over-pressurizes during operation due to worn rings.) I'd stick with using either the early or late model PCV system for best results. YMMV.
Thread Starter
Teching In
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From: Utah
Thank you beachcomber
Now I get it one more question though, do I need the original air cleaner or use an open air cleaner. I was reading something about that that there is a difference. In the diagram the air cleaner is a open one.
I don't want to use the late model PCV system because I don't want valve covers with a hose coming out with a PCV plug in them. I don't think that looks good
Now I get it one more question though, do I need the original air cleaner or use an open air cleaner. I was reading something about that that there is a difference. In the diagram the air cleaner is a open one.
I don't want to use the late model PCV system because I don't want valve covers with a hose coming out with a PCV plug in them. I don't think that looks good
Staging Lane
Joined: Sep 2012
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From: Virginia Beach, VA
Not quite sure what would be considered an "original" air cleaner for your 283. If you're think about using an oil bath air cleaner from the late 1950's, I would recommend against it unless you're really looking to achieve the vintage look. They're messy and don't filter enough air for any 283 engine except for the base, low performance models.
Any open element air cleaner assembly you buy today should have a provision for a clean air takeoff that you can use for your PCV system. You don't need to buy a reproduction Corvette air cleaner base unless you're looking for vintage look like the '60-'62 air cleaner assembly pictured here. (If the link doesn't work, it's essentially a covered air cleaner with louvers around the circumference. The element is foam, and since it's a reproduction, it's pricey. You can find something similar at Jeg's for less money.)
Hope this helps! Here's a picture of the '60-'62 air cleaner assembly:
Any open element air cleaner assembly you buy today should have a provision for a clean air takeoff that you can use for your PCV system. You don't need to buy a reproduction Corvette air cleaner base unless you're looking for vintage look like the '60-'62 air cleaner assembly pictured here. (If the link doesn't work, it's essentially a covered air cleaner with louvers around the circumference. The element is foam, and since it's a reproduction, it's pricey. You can find something similar at Jeg's for less money.)
Hope this helps! Here's a picture of the '60-'62 air cleaner assembly:
Last edited by mr.beachcomber; Dec 31, 2014 at 10:23 AM. Reason: Link didn't work so I added a photo
Thread Starter
Teching In
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From: Utah
beachcomber
I wasn't thinking of using an oil bath air cleaner I don't like those. I was thinking of just a stock GM air cleaner. My dad had a 64 Impala SS something like that air cleaner of course it was a 4 barrel. But I have a two barrel so I am some what limited but I am sure I will find something I like. If I hook it up like the diagrams shows you, then I can get valve covers with out holes for a PCV valve and a vent.... I think?
I wasn't thinking of using an oil bath air cleaner I don't like those. I was thinking of just a stock GM air cleaner. My dad had a 64 Impala SS something like that air cleaner of course it was a 4 barrel. But I have a two barrel so I am some what limited but I am sure I will find something I like. If I hook it up like the diagrams shows you, then I can get valve covers with out holes for a PCV valve and a vent.... I think?
Staging Lane
Joined: Sep 2012
Posts: 85
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From: Virginia Beach, VA