Technical Valve cover dilemma

I'm putting together the SBC for my olds and I'm having a valve cover dilemma. I have a set of 6 fin Cal custom 40-2000 valve covers in very nice shape. They have no holes for pcv/breather which I need. I don't want to change/modify intakes for provisions either.
I can't find any other sets out there I like, except for some TALL (just under 5") finned covers out of Australia for like $465.

Could I/should I machine holes in my covers?

 

Well you gotta poke a hole someplace.
How about the back side by firewall

 

Well, I think it may be sacrilege to machine holes in those covers

But, I just don't want cookie cutter covers....

 

Nothing a mill wouldn't fix in short order.
Edit: So lets see, you don't want to modify these covers, but you also don't want to buy new ones that will work and you also don't want to modify the intake manifold. Got it! Sounds like a piece of cake.

 

And if I do mill holes in them, what about baffles so I don't **** up oil with my pcv?

 

If you do machine a hole for the breather dont forget to make sure it is not over a rocker arm like I did.Real hard to keep the breather in the hole when the rocker hits it.Duh!

 

I got a pair of stock baffles from some steel chevrolet covers. Yours for shipping.

 

I know you don't want to buy new valve covers, but if I were you, I'd get a pair of GM LT-1 valve covers. They're finned and look AMAZING polished up. They have internal baffles and oil filler provisions, and if you keep your eyes open, they're reasonable in price. I've had 3 or 4 pair that I got for under $50 each.

 

Where will the air be introduced into the engine ?

 

machine a flat spot, drill a hole, and then make a tin baffle on the inside. Make sure it is in between the rockers as stated above. put one in each valve cover, one goes with a pcv valve to the intake, the other with a hose to the breather so filtered air can be ****ed into the motor.

 

Put a road draft tube and the intake manifold oil fill/breather on it.
We don't need no stinkin' PCV, this is the HAMB.
PCVs are not traditional.

 

What intake are you running? A picture of your set-up would help.

Pat

 

I wonder if 2 of the 20 watching this e-bay item will be willing to pay more than 400 US bucks for them.

http://www.ebay.com/itm/1960s-CHEVY...-COVERS-302-327-350-CAMARO-NOVA-/400550524217

 

Ummm.....isn't it a buy it now only deal? If so, their not gonna go for less than $399.95 unless they don't sell and he relists them cheaper. I bring this up because I kinda screwed myself on one of these deals the other day. If an auction is taking bids and has a buy it now option, the buy it now option will be disabled as soon as the bidding reaches 1/2 the buy it now price. Didn't know that and ended up paying more for something than the buy it now price was.

Posted using the Full Custom H.A.M.B. App!

 

I saw an idea that I thought was really slick. The sb engine was running a electric fuel so the guy had his breather/oil filler tube coming off a plate bolted to where the fuel pump would have mounted. He had the top of the tube about even with the bottom of the rocker cover.

 

Here's a thought. Modify the above a bit, by welding a fitting on the older style oil fill/breather stack, that will accept a pcv valve. Give it a slight uphill angle to prevent oil being added from running into the pcv valve. It's a simple hookup between the suction end of the pcv hose and the modified fill stack. Easier yet, run a breather with pcv hose ****** on it, on the early fill stack. (Wait....no, that'll turn into a vacuum leak.)
No road draft tube needed, and it complies with the earliest example of pollution control. (Which, if memory serves me, was required in California as early as '64, which makes it traditional.)

Roger

 

Now that is something I can agree with!!!!!!

 

Rpm Air Gap.

 

Those are 20 guys who already own Cal Custom valve covers.

 

Are you building a car, or a museum?

Cut 'em.

 

Use a longer distributer from a tall deck 427 and have a spacer machined to fit between the intake and the distributer which is drilled for a screw in pcv and do a vent where your fuel pump used to be.

 

your problem is obvious you have valve covers...................

 

for the pcv you can drill the manifold back by the distributor ( theres a flat plane were they put the numbers or put it in the valley ) for filling the pan you going to have to cut the valve cover and put in a breather or put it in the fuel pump port and its going to take some time to fill the pan thru the 3/8 return hole in the block .