Steve is right in that the marine engines have a oil fill cap in one of the valve covers.  These valve covers can very often be found at marine salvage houses.  The caps on these covers actually appear to be fuel fill caps and twist on.  Here’s a pic.

Lorena, Texas (South of Waco)

Hope these help

55Birdman  Hickory NC

Great pictures guys!!

Is there any advantages in having two breathers per bank other than one?

55Birdman,

I didnt notice how you fill the oil, is the opening on the other bank? Are you running a PCV in the valley cover? Is the road draft tube deleted?

Thanks again,

Tricky

"Not speeding Officer, qualifying!"

Ted: Is the photo of your EMC engine? And I know this question has been asked before, but what engine block Red are you using?. The spray can stuff I used tends to turn orange in short order. Thanks.

Paul

My previous question is off the opening topic & I should have transferred it to "this & that." Sorry.

Paul

Paul.  That is the EMC engine.  The paint is Krylon Ford Red engine enamel.  Seems to be a little brighter red than other two brands that are locally available.

 

Tricky.  Additional breathers have some benefit when running the engine repeatedly at full throttle.  My 427 HiRiser has a total of six breathers on it.  If I use a header evacuation system on a race engine, then I’ll not use any breathers and the engine will be effectively sealed up so the evacuation system can run a negative pressure (vacuum) on the crankcase.

Lorena, Texas (South of Waco)

Hi Ted,

The header evacuation system is only good at high RPM is that right, as in the exhaust gas stream must be sufficiently fast to create a negative vacuum in the sump, which is only created at higher engine rpm's - am I correct here?

Sounds like single breathers in the valve covers, PCV in the valley cover and elimination of the road draft breather tube is the way to go, thanks guys.

Cheers,

Tricky

P.S. Really nice engine Ted!

"Not speeding Officer, qualifying!"

There are 2 screws that hold the top cover on the breather. Just remove those and remove screen and put oil in. I have pvc valve on drivers side . Kinda hard to see in these pics. As for 1 or 2 breathers on each side I guess its a matter of personal preference. My car is a stock  daily driver and didnt think 2 were necessary. Maybe  wrong but the 2 work ok. Road draft tube is gone completely. The valley pan is from Charlie Price Vintage Speed in Fla.

55Birdman  Hickory NC

Thanks 55, that is a really nice setup. Thanks for the information too.

Cheers,

Tricky

"Not speeding Officer, qualifying!"

That’s essentially correct.  Header evacuation systems are ineffective where mufflers are being used as the increase in backpressure prevents an adequate flow at the evacuation pickup port.  This makes header installed evacuation systems only suitable on racecars where restrictive mufflers and tailpipes are not being used.  Depending upon the collector size, the evacuation systems can start working as low as 2500 rpms if they are installed into the collectors at the optimum position.

Lorena, Texas (South of Waco)