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#1 |
Registered User
Join Date: Oct 2006
Location: Canada
Posts: 60
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crank vent tube at the top rear of a 60 283 block
is there a common way to modify it to a pcv valve setup without involving the valve cover?
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my o/l says the truck has a vibration at 65 mph..I said its ok, it goes away at 90. |
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#2 |
Registered User
Join Date: Oct 2009
Location: anaheim ca
Posts: 274
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Re: crank vent tube at the top rear of a 60 283 block
pcv on the oil filler tube.but i think you still need a breather.
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#3 |
Registered User
Join Date: Oct 2009
Location: anaheim ca
Posts: 274
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Re: crank vent tube at the top rear of a 60 283 block
so i answered nothin.
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#4 |
Registered User
Join Date: Oct 2006
Location: Canada
Posts: 60
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Re: crank vent tube at the top rear of a 60 283 block
snicker, no sweat.
I am thinkin I can adapt a line from the hole the tube is in. I haven't pulled it yet to see. Just thought I'd ask before hand.
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my o/l says the truck has a vibration at 65 mph..I said its ok, it goes away at 90. |
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#5 |
Registered User
Join Date: Jun 2009
Location: Eugene, OR
Posts: 200
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Re: crank vent tube at the top rear of a 60 283 block
Where can I get one of those oil filler tubes with the twist on cap?
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Project Build (1): http://67-72chevytrucks.com/vboard/s...d.php?t=362482 Project build (2): http://67-72chevytrucks.com/vboard/s...d.php?t=370985 “Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming...Wow, What a Ride!” - Hunter S. Thompson |
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#6 |
Account Suspended
Join Date: Jul 2007
Location: Plumas Lake, Ca.
Posts: 1,009
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Re: crank vent tube at the top rear of a 60 283 block
At the rear of the block you are referring to what was commonly called a "road draft" tube. Came out of the block and then ran down the back next to the transmission.
Right? |
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#7 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: crank vent tube at the top rear of a 60 283 block
Markeb01 did a little write up on how he did his. It did involve the valve cover, but is pretty much hidden. You will need to have a breather somewhere on the engine if you switch to a PCV valve.
Here is his writeup..... http://www.67-72chevytrucks.com/vboa...d.php?t=366853
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#8 |
Registered User
Join Date: Nov 2009
Location: Cremona AB Canada
Posts: 370
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Re: crank vent tube at the top rear of a 60 283 block
Later 283-327s had a hose connected to the rear vent thru a pcv valve with a breather cap on the fill tube stant makes a slip on breather cap
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#9 |
Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: crank vent tube at the top rear of a 60 283 block
If you have a 283 engine with the road draft tube in the block, you can run breatherless valve covers with not modifications at all. You need an adapter that bolts into the draft tube hole in the block in order to connect the pcv valve. The other end of the hose should connect to the base of the carburetor (full manifold vacuum). Here's a thread that discusses what to look for:
http://www.jalopyjournal.com/forum/s...d.php?t=151629 You'll also need an intake manifold with an oil fill tube and breather cap. You should not use one of the later designs with the pcv valve connected to the fill tube. These should only be used with vented valve covers. Even with a breather on top, if the pcv valve is just below the breather it will draw air in from the breather and the engine will not have adequate ventilation of crankcase fumes. |
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#10 |
283 Drama Queen
![]() Join Date: Dec 2004
Location: Surf City, CA
Posts: 2,435
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Re: crank vent tube at the top rear of a 60 283 block
This is the way I did my '283', using the oil filler tube in the front of the intake manifold as the breather point - and the old draft tube as my PCV route - up to the aircleaner, via a "T" just after the valve - on the way out.
So far - So good, at least in particular application, with a two-barrel carb.
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For about 12 years of my adult life I had a severe speech impediment. My ex-wife never let me get a word in edgewise. |
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#11 |
Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: crank vent tube at the top rear of a 60 283 block
Here's a link to the piece needed to cleanly connect smog to the road draft hole. It took a while to find one anywhere.
http://cgi.ebay.com/ebaymotors/64-65...Q5fAccessories |
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#12 |
Registered User
Join Date: Oct 2006
Location: Canada
Posts: 60
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Re: crank vent tube at the top rear of a 60 283 block
thanks for the replies fellas.
I like the pcv and grommet idea. I'm gonna try that first. I had a 600 edelbrock and aluminum intake given to me but I don't wanna lose the oem valve covers so I may just forgo the free intake.
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my o/l says the truck has a vibration at 65 mph..I said its ok, it goes away at 90. |
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#13 |
Registered User
Join Date: Jun 2009
Location: Eugene, OR
Posts: 200
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Re: crank vent tube at the top rear of a 60 283 block
Is the intake an Edelbrock Performer? It has a provision for an oil fill tube that can be milled out. That's what I did on my 327. As for the pcv setup, I have the elbow Mark mentioned on the back of the engine, then a short hose to an inline pcv valve, then a short hose vacuum port at the bottom the Edelbrock carb.
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Project Build (1): http://67-72chevytrucks.com/vboard/s...d.php?t=362482 Project build (2): http://67-72chevytrucks.com/vboard/s...d.php?t=370985 “Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming...Wow, What a Ride!” - Hunter S. Thompson |
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#14 |
Registered User
Join Date: Oct 2009
Location: anaheim ca
Posts: 274
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Re: crank vent tube at the top rear of a 60 283 block
cassic industries has them . ask for the late 60s impala 327 oil filler tube
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#15 |
Registered User
Join Date: Oct 2006
Location: Canada
Posts: 60
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Re: crank vent tube at the top rear of a 60 283 block
yeah it has the flat spot and I may just do that. The old manifold has no vacuum ports and Im goin power brakes.
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my o/l says the truck has a vibration at 65 mph..I said its ok, it goes away at 90. |
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