LS1/LS6 PCV Question
LS1/LS6 PCV Question I swapped out the LS1 intake, heads, and valve covers with the LS6. I have not modded the block for the LS6 valley cover so I have removed the PCV cross-over / intake manifold vacuum hoses (the vent tube coming from the passenger side valve cover and throttle body is connected). Should I be worried to drive the car as it is right now?...
Here's the webpage that details the conversion process: http://www.ls1howto.com/index.php?article=18
1998 Z28 Camaro
- 224/228 Comp Cam
- Diamond High Compression Pistons / Eagle Connecting Rods
- LS6 Heads
- LS6 Intake
- Hooker Headers
Here's the webpage that details the conversion process: http://www.ls1howto.com/index.php?article=18
1998 Z28 Camaro
- 224/228 Comp Cam
- Diamond High Compression Pistons / Eagle Connecting Rods
- LS6 Heads
- LS6 Intake
- Hooker Headers
Not sure I follow. By "block mod" do you mean the piece that needs to be cut out? Are the hoses you removed the ones from the driver's side, the a "Y" connection and passenger side then to the PCV valve and intake?
Not sure I follow. By "block mod" do you mean the piece that needs to be cut out? Correct. Are the hoses you removed the ones from the driver's side, the a "Y" connection and passenger side then to the PCV valve and intake? Yes. I have removed the cross over tube (green) and the intake manifold vacuum tube (blue). The vent tube coming from the front of the passenger side valve cover to the throttle bottle is connected... The reason why I did this is because the vent ports on the LS6 valve covers are different than the LS1 valve covers which support the PCV system.These tubes are shown in the picture below.
Last edited by LS-1Z28; May 30, 2010 at 10:14 AM.
what did you use to cut into the block? would a dremel have any trouble cutting it?
Not going to lie.. I had a mechanic at work help me out. He used an air powered cutter. I would assume a dremel would work fine. Aluminum is pretty easy to cut through.
I got the ls6 heads and intake cheap and wanted to swap them on for the extra performance (~20-30 rwhp). I wasn't aware of the pcv issues that the LS1 had with oil being deposited inside the intake. I think I'm going to go ahead and do the conversion for peace of mind... The car appears to be running pretty smooth but I have read that the pcv system actually help remove moisture from the block.
what did you use to cut into the block? would a dremel have any trouble cutting it?
what did you use to cut into the block? would a dremel have any trouble cutting it?
I just did the PCV conversion...you are going to wish you had done it when you did your swap, just bc you have to remove the intake again....which I hate getting those last few bolts out.
But to answer you question, yes a dremel will be fine, just follow the write-up on LS1howto and get a few extra cutting blades (I used 2 metal cutting blades).
Also if you haven't purchased a Valley cover, get the one from +04 rather than the pre-04 one. It has a built in separator, so you don't have to use the external PCV valve and it is only like 5-10 bucks more. I didn't know about this and used the p/n in the write-up, which is the older style.
But to answer you question, yes a dremel will be fine, just follow the write-up on LS1howto and get a few extra cutting blades (I used 2 metal cutting blades).
Also if you haven't purchased a Valley cover, get the one from +04 rather than the pre-04 one. It has a built in separator, so you don't have to use the external PCV valve and it is only like 5-10 bucks more. I didn't know about this and used the p/n in the write-up, which is the older style.
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I just did the PCV conversion...you are going to wish you had done it when you did your swap, just bc you have to remove the intake again....which I hate getting those last few bolts out.
But to answer you question, yes a dremel will be fine, just follow the write-up on LS1howto and get a few extra cutting blades (I used 2 metal cutting blades).
Also if you haven't purchased a Valley cover, get the one from +04 rather than the pre-04 one. It has a built in separator, so you don't have to use the external PCV valve and it is only like 5-10 bucks more. I didn't know about this and used the p/n in the write-up, which is the older style.
But to answer you question, yes a dremel will be fine, just follow the write-up on LS1howto and get a few extra cutting blades (I used 2 metal cutting blades).
Also if you haven't purchased a Valley cover, get the one from +04 rather than the pre-04 one. It has a built in separator, so you don't have to use the external PCV valve and it is only like 5-10 bucks more. I didn't know about this and used the p/n in the write-up, which is the older style.
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Verdad Gallardo To answer your question, I already had the LS6 coolant lines prior to doing the PCV conversion. If you had the LS1 coolant lines, then you would have to remove those as well during the valley cover swap.
Here's a data point for you. I have the LS6 valley cover. Changed my oil this weekend. My catch can had maybe 3-4oz of liquid in it, half water and half oil. I would run a catch can whether you have the ls6 valley cover or not.
I also have a small oil separator on the intake vent tube side, that usually only accumulates a few drops of oil for me.
I also have a small oil separator on the intake vent tube side, that usually only accumulates a few drops of oil for me.
This is what I had to cut off for the block. I used a hacksaw to cut some maybe 1/2" notches towards the block, and then used some vise grips to break it off. I found this to be better than a dremel that blew metal shavings everywhere. The valley cover fit in snug. I didn't take any pics of the valley cover internals because you can see those online... I used the 04+ Valley Cover
This is from LS1howto
and then what it looks like without it. Note to the left of the throttle body the U-Shaped hose pulling vacuum from the valley cover to the intake. No more PCV hose running around the motor. Much cleaner..
I was also replacing a bad knock sensor while I was in there
This is from LS1howto
and then what it looks like without it. Note to the left of the throttle body the U-Shaped hose pulling vacuum from the valley cover to the intake. No more PCV hose running around the motor. Much cleaner..
I was also replacing a bad knock sensor while I was in there
