valve cover ?

[drivethechevy]

imin the process of building up the new engine to dro in my 68k10 and i want to run script valve covers without buying the special intake for them, this is a link to what i am thinking i am going to have to do
http://store.summitracing.com/partde...5&autoview=sku
has ayone ever run any valve covers like this, are there any problems with doing something like this
thanks
nate

[straitnate14]

you mean like this? this is a simple fix and dosnt look terible

[prg machine]

StraitNate,
does the other side, valve cover, have an oil fill?

[prg machine]

There is something about that blower setting atop that otherwise stock looking block that realy seems special.
Anyone else notice that?

Kinda cool to see for a change , what with with all of the aluminum heads, vortecs TBI, fuel injected rocket science fast burn slow burn new-age blocks and billet bolt ons that make that old-school small block seem like that it is realy how they all should look!!!!

[big_al_71]

You mean like this,,,,,,,,,,,,

[prg machine]

Originally Posted by big_al_71

You mean like this,,,,,,,,,,,,

sure does look different huh?



Personal call I guess...........................I just like the old school look. No offense against your choices.

[Brad]

Originally Posted by straitnate14

you mean like this? this is a simple fix and dosnt look terible

Any reason you couldn't drill the PCV hole towards an end instead of right there in the center. That looks pretty ugly and just not worth it to me. I've been wanting to do this but don't know if it would work. I'd want to put the PCV valve on one end, but there are two big problems- the rocker arms being in the way below, and the oil fill on the other manifold...it would essentially cover up a large portion of the script on that cover. Also, any ideas how to weld baffling so that it wouldn't damage the outer appearances?

[straitnate14]

It's alot farther to the front than it looks in the pic, There is no fill on the other side it takes about 10min to get the oil throught that little hole, the most nerve racking 10 min's in your life

[Brad]

Hmmmmm, makes total sense now, that I wouldn't be required to put that oil fill hole in one of them. Thanks! I'm that much closer to doing that same idea. Sometimes I can't see the forest through the trees.

[Longhorn Man]

I tried putting a PCV and oil fill in the normal places on some script covers one time. The rocker smacked the breather and actually shot it out from under the open hood. My ex found it quite funny, but I was more than a little bummed.

[Highsteel]

Originally Posted by straitnate14

It's alot farther to the front than it looks in the pic, There is no fill on the other side ....

Doesn't that create a lot of pressure on that other side?
RE don't both sides need vented?
I'm running a PCV valve on the drivers side and a vent into the Air cleaner spacer on the right side? (Sorry about crappy pic)

[Brad]

What about placing the PCV on the side, in between the rockers instead of the top? Would that work?

[prg machine]

it seems like you can't run just a PVC and no other vent. Where does the "vent" come from if there is not a breather on the other cover?????

[straitnate14]

I dont know my brother did it before I bought it from him and never realy thought about it that hard?

[drivethechevy]

are pvc's even needed, the engines seem to run fine without them, or does a completely factory 283 with the oil fil on the intake have some hiden pcv i dont know about?
the reason i ask is i wanna run a quad intake from the 350 in my 70 gmc on the 74 block 350 that is going in my k10 and it doesnt have the oil fill tube on the intake, and since i cant aford a 327 to make my truck even closer to original i want to run the original scrips that came on the 327, and i was thinking that if i put a steel tube and rubber hose bridge between the valve covers then welded an vertical tube to the over manifold tube and stuck a breather/oil fill cap on top of it all it would work as an oil fill tube, help deplete crankcase gases, and eliminate the need to put in pcv baffles
i dont know maybe im completely mistaken, this if the first engine i have ever rebuilt, and i dont have to much other engine experience under my belt (yet) i guess i will just take my chances and at least butcher up a set of scripts for my idea, and when i find out if it may cause the death of my engine or if it should be fine i will either install it or remove it

[Longhorn Man]

the older engines had a primitive ventilation system, but the PCV is much better. While it is not NEEDED, there is no good reason not to include it.
The PCV system sucks all the fumes out of the engine. These fumes are made up of unburned fuel, and other gasses that are a natural byproduct of cimbustion that would otherwise settle in your oil. This turns acidic and contaminates the oil, and also attacks the metals on the inside of the engine. It also helps suck water vapor out that forms naturally.
To work properly, you need the PCV on one side, and a vent on the other side.
if you don't run a PCV system, and you don't have the old road draft tube, then you will need a vent of some kind, otherwise the engine can either suck gaskets in, or, in some cases, blow them out... either way, your day will be ruined with oil spewing all over your motor.
Other than astetics or a correct apearing restoration, there are no drawbacks to running the PCV system.

[drivethechevy]

thanks longhorn man, if i undertand what you said correctly, by having a pcv valve i could posibly get better gas mileage compared to if i didnt have a pcv? do part stores sell the little pcv slide boots? and could i baffle(i think thats the right word) off the pcv by welding a little plate on the inside of the valve cover to keep the oil out of the pcv?

[70rs/ss]

Drilling a hole in the cover allows for the PCV valve to be used but it will be unbaffled and that'll allow oil to get sucked into the PCV, I believe someone make a valve cover with all the PCV /breather stuff, or you could kill a set of OE covers with baffles and weld them into the script covers? BTW a PCV on one, requires a Breather somewhere, otherwise the vacuum created will pull air through a sel somewhere (ask me how I know!)

[straitnate14]

mine has a pvc valve at the valve cover with a hose running up to the air cleaner with a little breather up there but I dont have a vent, and on the inside of the valve cover my brother bulit a little box that surrounded the pcv witha few holes in it

[Longhorn Man]

so your PVC is plumbed to the air filter? Or are you saying the other valve cover has a hose going to the air filter?

[tkeduk8r]

I am currently running those script valve covers on my 74 c10 w/ an '86 305. I used a cast intake off of a '68 327 that had the oil fill provision in the front. Currently I run a F*** twist in breather that I picked up from NAPA in the oil fill tube... NOW I have also found that GM made a oil fill tube that had provisions for a threaded PCV. They were used on the Nova L79's and are available black or chrome from most resto houses.... I have ALOT of miles on my 305 and I have ahd no problems (although I probably over maintain my vehicles) with the F*** vented oil fill cap. If I redetail the motor again, I will probably add the L79 fill tube, but for now all is good with the current set up... I am at school rigth now, but I'll try to get some pics later tonight...
Gimme a call too at some point an I can explain better... have fun down there...
--Mike

[72swbcamo]

Does anyone remember the the post, either on the forum board or the classified about the torque limiting straps. There are a couple currently posted in the classified, but I thought I remember seeing a post that showed where and how they are installed on our trucks. Sorry I gues i posted this on the wrong thread. Then I saw a thread currently posted on the site exactly about this issue.

[fatboys69]

I am running die cast alumn with the "CHEVROLET" script engraved in them. Guess you could paint them orange and fill the engraving with black. Don't know what brand they are I bought them from a buddy for $25 several years ago. I'll post pics tommorrow ( all my pics are on my 'puter @ my office ).

[prg machine]

without the pcv valve, a backfire could blow back and explode crankcase.

[fatboys69]

Here are the ones I have ( cast alumn. with engraving ). Like I said don't know the brand, bought them off of a buddy years ago.