|Topic Review (Newest First)|
|01-05-2020 08:00 AM|
|wk2hons||That,s how I do mine also.|
|01-04-2020 07:01 PM|
|sz0k30||I should have mentioned that's how I do mine. I just pull off the driver's side breather.|
|01-04-2020 12:32 PM|
|jayoldschool||I should mention that on one of my small blocks, I use a set of valve covers with one opening/per. I use PCV on one side, a push in breather on the other. I take out the breather and pour in the oil right through the separator. Works fine.|
|01-04-2020 11:12 AM|
Originally Posted by sz0k30 View Post
|01-03-2020 08:06 PM|
|sz0k30||Here's how mine are.|
|01-02-2020 02:55 PM|
Here are some reproduction (but not good reproductions since they are missing the drippers above each rocker ball). They do show the screw in (quarter turn) oil fill cap.
In the case of your covers you pull one PCV grommet and substitute a push in rubber oil fill plug.
By the way Grainger sells their plug for $1.93 while most others sell the same part for $7.98
|01-02-2020 02:29 PM|
|wk2hons||Looking back at your pictures I see the holes that are there and the flat spots. If the holes are above a baffle you may have to use the flat spots for other hole. Maybe the holes that are there are for a breather vent. They will need to be plugged with something. Figure out what you need and my offer still stands. I am a retired toolmaker, always looking for something to do.|
|01-02-2020 02:21 PM|
|wk2hons||The pic's that you show have a flat spot on both valve covers. You only need one for the pcv valve. The other will work for a vented oil fill cap. You just have to come up with the right size rubber bushings to fit snug in the holes. Then one is for the pcv valve and the other for the fill cap.|
|01-02-2020 12:30 PM|
Originally Posted by wk2hons View Post
ETA: do you need PCV valves in BOTH covers to properly vent the crankcase?
|01-02-2020 10:50 AM|
|wk2hons||I have a 350 that has nice cast aluminum valve covers with ribs on the outside. one has a hole with a rubber bushing for the pcv valve. and the other one has the same and I used that for an edelbrock oil fill cap with a breather. If one valve cover is solid with no hole you can put in a hole on a milling machine for a rubber bushing for the oil fill cap. You need to use a mill to get thru the ribs first then the hole. I could do that for you for free. You would just have to pay for the shipping. Wayne|
|01-02-2020 08:48 AM|
|snoopy1||You could just pull the pvc valve and use a funnel to fill the oil through the pvc hole. That's depending on how the valve covers are baffled of course.|
|12-29-2019 10:23 PM|
From his original post:
|12-29-2019 07:32 PM|
Won't address the other issue of no PCV valve or vent. Blow by pressure will blow out front and rear seal and cause valve cove gaskets to leak.
|12-29-2019 07:18 PM|
|jayoldschool||They will indeed seal better. More even clamping pressure all the way around.|
|12-29-2019 06:55 PM|
Originally Posted by jayoldschool View Post
|12-29-2019 05:21 PM|
|jayoldschool||You run a good composite rubber Fel Pro gasket and simply take the cover off to do an oil fill.|
|12-28-2019 07:33 PM|
You can drill a hole in one of the valve covers that will be in the back of the engine (out of site) then TIG weld into the valve cover an aluminum elbow. Onto this elbow you can route a hose to a remote oil air separator and fill point.
Then you run a hose (or better yet an aluminum half inch tube down past the headers to location that you can then route a hose into your oil pan (another drilled hole with a bulkhead fitting sealed with O-rings this time) onto another elbow with a hose barb.
The rubber hose (or aluminum tube with an A/N fitting) goes into the bottom where the petcock is now. You pull off the recleanable air filter to install oil, that drains down the half inch line to the oil pan.
The obvious reason for an aluminum line is the heat from the headers will melt the rubber hose and the hole in the line will dump oil on your headers creating a fire that will burn your car to the ground. Which is the reason I didn't choose this product recommended for Chevy trucks and Mustangs:
|12-28-2019 07:05 PM|
I've been looking at new cast aluminum valve covers for the 496 BBC in my '68, and one thing I've noticed almost across the board is that the ones I like do not have a provision for an oil filler cap - these seem to be PCV only. My intake does not have an oil fill either. So how does everyone fill their oil after a change? Down the dipstick tube? Thanks for any replies.
ETA: the covers I like are also finned, so drilling a hole doesn't seem like a good idea, especially considering the cost.