Valve Covers, PCV setups....Info Needed
02-16-2014, 08:00 PM
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Valve Covers, PCV setups....Info Needed About to do heads and cam on my 97' C5. I'm swapping from the early 241s and covers where the coils mount directly to the valve covers. The 08' 243 heads I picked up didn't come with covers so I picked up a set off a 99' Camaro and I also have a set from an 08' 5.3L truck motor I'm putting in a street rod I'm building.
I was thinking of using the 08' truck coils as I here they are better than the LS1 coils. But putting the truck bracket and coils on the cover, they sit much higher up towards the intake and I'm curious if it causes clearance problems with the fuel rails or maybe the fuel rail covers??? I have the 97'-98' dual line setup. The only coil brackets I have are from the 08' 5.3L. Do I need Camaro or C5 brackets? Will the truck coils mount to them?
And as far as the covers go, the pcv setup is different on the two. Which is preferred? On the Camaro driver side cover, there is a grommet that I assume the pcv valve plugs into?? On the 5.3L cover, there is a built in nipple. Pass side, the Camaro cover has two nipples vs only one on the 5.3L cover. The underside baffles are also different.
So, use this one or that one? Mix this one with that one? Or get a different cover setup I don't already have. I already have an oil catch can to go with whatever setup I go with. Just not going the LS6 setup. I would have to grind/notch part of my block in the valley for the LS6 style valley plate to fit. Not dealing with that. Thoughts???
My early 97' C5 setup.
Truck coils and brackets on Camaro cover.
Camaro pcv
5.3L pcv
5.3L coils, brackets, and covers
I was thinking of using the 08' truck coils as I here they are better than the LS1 coils. But putting the truck bracket and coils on the cover, they sit much higher up towards the intake and I'm curious if it causes clearance problems with the fuel rails or maybe the fuel rail covers??? I have the 97'-98' dual line setup. The only coil brackets I have are from the 08' 5.3L. Do I need Camaro or C5 brackets? Will the truck coils mount to them?
And as far as the covers go, the pcv setup is different on the two. Which is preferred? On the Camaro driver side cover, there is a grommet that I assume the pcv valve plugs into?? On the 5.3L cover, there is a built in nipple. Pass side, the Camaro cover has two nipples vs only one on the 5.3L cover. The underside baffles are also different.
So, use this one or that one? Mix this one with that one? Or get a different cover setup I don't already have. I already have an oil catch can to go with whatever setup I go with. Just not going the LS6 setup. I would have to grind/notch part of my block in the valley for the LS6 style valley plate to fit. Not dealing with that. Thoughts???
My early 97' C5 setup.
Truck coils and brackets on Camaro cover.
Camaro pcv
5.3L pcv
5.3L coils, brackets, and covers
02-17-2014, 04:00 PM
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I also realize I have the Melco D581 truck coils, not the D585 truck coils so many swap to. Yet I found info saying the D581's are great coils too. They are small and clean looking and as long as they perform as good as LS1 coils, I may as well use them as I have them here. Might just make custom brackets to hold them to my covers.
That will just leave me with which covers? The Camaro covers have a grommet that the pcv valve plugs into? That worries me about it leaking there. The truck cover has a hose nipple there that won't leak. It that a built in pcv valve or do you run one inline on the hosing?
And do I go with the pass cover with one or two hose nipples?
That will just leave me with which covers? The Camaro covers have a grommet that the pcv valve plugs into? That worries me about it leaking there. The truck cover has a hose nipple there that won't leak. It that a built in pcv valve or do you run one inline on the hosing?
And do I go with the pass cover with one or two hose nipples?
02-17-2014, 10:20 PM
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I was thinking this one. Use the 5.3L covers that have the fixed pcv on the drivers side and the fresh/clean air nipple on the passenger side. Go ahead and upgrade to the LS6 valley cover. Guess I wouldn't use a replaceable pcv as it's fixed into the valve cover, or would I add one inline before the catch can? Might add a small transparent separator right after the catch can to see if any oil makes it past the catch can.
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02-18-2014, 09:58 PM
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I am going to go ahead and pick up an LS6 valley cover and notch the block so it will fit. The question I have is do I go with the earlier style with the inline pcv valve or the 04' style with the built in fixed orifice that does not require a pcv valve???
Here are the two setups I am thinking of. I have either style of valve covers on hand.
The truck covers have the fixed orifice restrictor built into the driver side cover. Or the Camaro cover has the large grommet to either plug or route a breather line between covers. Would running the second setup cause a problem as the LS6 valley cover has the fixed orifice as does the valve cover. Or would the first setup with the cover to cover fresh air breathing be better?? Guess it's a question of is it better to pull the vapors out of one location or two?
Here are the two setups I am thinking of. I have either style of valve covers on hand.
The truck covers have the fixed orifice restrictor built into the driver side cover. Or the Camaro cover has the large grommet to either plug or route a breather line between covers. Would running the second setup cause a problem as the LS6 valley cover has the fixed orifice as does the valve cover. Or would the first setup with the cover to cover fresh air breathing be better?? Guess it's a question of is it better to pull the vapors out of one location or two?
02-18-2014, 10:25 PM
#11
With the LS6 valley cover, the best way to continuously flush the combustion byproducts and condensation out of the crank case with fresh air is to have a fresh air inlet on both valve covers so the fresh air will be pulled towards, and through the LS6 valley cover outlet from both sides of the engine.
02-18-2014, 10:44 PM
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With the LS6 valley cover, the best way to continuously flush the combustion byproducts and condensation out of the crank case with fresh air is to have a fresh air inlet on both valve covers so the fresh air will be pulled towards, and through the LS6 valley cover outlet from both sides of the engine.
