Topic: 67 GT 390 PCV system

[Paperback Writer]

Hi Jeff,

The engine in question is from my car (and I was pretty surprised to see it discussed here online!)

I've had the car for almost 30 years now, and while I have no way to prove it, I believe both valve covers are indeed original to the car. 

However, I do offer up a vintage photo for consideration.  In the January 1967 issue of Car Life magazine, there is a photo of a 390 engine with similar valve covers, and the one on passenger side does appear to have the PCV hole in the middle of it (see attachments below)...

69SCJQ4 does bring up a valid question - when did the transition to the "Powered by Ford" valve covers take place?

 

[Bob Gaines]

Hi Jeff,

The engine in question is from my car (and I was pretty surprised to see it discussed here online!)

I've had the car for almost 30 years now, and while I have no way to prove it, I believe both valve covers are indeed original to the car. 

However, I do offer up a vintage photo for consideration.  In the January 1967 issue of Car Life magazine, there is a photo of a 390 engine with similar valve covers, and the one on passenger side does appear to have the PCV hole in the middle of it (see attachments below)...

69SCJQ4 does bring up a valid question - when did the transition to the "Powered by Ford" valve covers take place?

Very interesting photo.It certainly helps give a different perspective. Thanks for posting . A lot of unusual features like the different looking battery heat shield and the clear zinc battery J hooks. I early car for sure.

[J_Speegle]

The engine in question is from my car (and I was pretty surprised to see it discussed here online!)
I've had the car for almost 30 years now, and while I have no way to prove it, I believe both valve covers are indeed original to the car. 

Well this is the place to discuss this and we should all be open to do just that

However, I do offer up a vintage photo for consideration.  In the January 1967 issue of Car Life magazine, there is a photo of a 390 engine with similar valve covers, and the one on passenger side does appear to have the PCV hole in the middle of it (see attachments below)...

Interesting article - one I had not seen before - so thanks. Magazine cars are often suspect given the many stories about the cars, the companies and the people who used the cars.  Does seem to be a fairly loaded very early car with cruise control and such. The battery shield is an odd ball one - also seen in the very early 67 Fairlane in the shot below - from a Motor Trend article. In this example with all the Thermactor stuff its a little more difficult to see where its PCV is located.





So do we have a detail that was on the first (week, month) 390's in 67? Guess we need to do some more searching.

BTW how does your cars vin compare to the first (lowest) San Jose picture I posted??

[Paperback Writer]

BTW how does your cars vin compare to the first (lowest) San Jose picture I posted??

My car's VIN was a little later... let's just say my VIN is between 110600 and 110650...

The door tag date says 30J (Sept. 30, 1966) - but according to the Marti report, it was actually built eight days early on Sept. 22, 1966.

It was also a California car with closed emissions and the thermactor, but no A/C...

BTW - The engine tag reads:

390     67      7
6  J      E    319   A

[krelboyne]

In reply #15, picture of the engine compartment.
Is that where the Curtis Wright speed control was located? In the middle of the firewall? The Perfect Circle version, isn't that one mounted on the shock tower or fender apron?

[69SCJQ4.30]

Well this is the place to discuss this and we should all be open to do just that

Interesting article - one I had not seen before - so thanks. Magazine cars are often suspect given the many stories about the cars, the companies and the people who used the cars.  Does seem to be a fairly loaded very early car with cruise control and such. The battery shield is an odd ball one - also seen in the very early 67 Fairlane in the shot below - from a Motor Trend article. In this example with all the Thermactor stuff its a little more difficult to see where its PCV is located.

You can see it in the center. You can also see in both that the hoses have a double 90 with a straight PCV instead of using the 90 adapter style.



I only have the 75 version of the MPC which only list the part number for the Powered by Ford valve covers, but under PCV hose it lists C7ZZ-6A664-A for 67 Fairlane GT and Mustang 4/B before 10/3/66. So there is a rough change over date.

[J_Speegle]

I only have the 75 version of the MPC which only list the part number for the Powered by Ford valve covers, but under PCV hose it lists C7ZZ-6A664-A for 67 Fairlane GT and Mustang 4/B before 10/3/66. So there is a rough change over date.

But that date does not seem to be supported by examples we've seen so far. The MPCs are not without some confusing information at time - example my copy shows 66 Mustangs equipped with 390 equipment listed

Closest page I have is a 4/68 version showing the same right side valve cover (early - late starting 67 production) with a C6OZ6582-A preceding it and shown with an em/te hole

The left side valve cover is listed as being changed with the Level 8 change that year from C6OZ-6582-B TO C7OZ-6582-C. Given the other footnotes on other pages it appears that the change to L8 was the 10/3/66 date.

Notes also indicate that for other (non-chrome equipped) applications the left valve cover also changed but the right hand one stayed the same before and after the L8 introduction. This change in the valve cover appears to correspond with a change in the PCV grommet.

Got to ask did Ford use "left" and "right" in this application backwards from the left and/or right side of the vehicle? Hate using left and right when describing things on cars- always taught passenger or drivers cars during extrication course I taught to address the possible miscommunication 

Unfortunately no nice detailed pictures for reference.

Still have the issue with the information maybe not matching with how the car may have been produced. Will try and find time to look through the TSB articles to see if there is a comment or note there to help the discussion

[Paperback Writer]

I realize that these are photos of a restored car, but I found a few shots in my archives the other day of a 390 '67 GTA Fastback that also had the exact same "center hole" passenger side valve cover and the "ribbed" driver side valve cover that my car has.  These pictures were taken at a Mustang show 12 years ago in Vancouver, Washington.

I still believe these valve covers are the original Ford parts...

[jwc66k]

What does the air filter can look like? With horn, or with holes for air in.
Jim

[Paperback Writer]

Attached below is a shot of the air cleaner assembly that was on the car when I bought in 1983.  However, I'm not as certain about it's originality to the car as I am about the valve covers...

BTW - There was another topic on this forum about a year ago with some photos of an early San Jose 390 engine that also had these "odd-style" valve covers as well: http://www.concoursmustang.com/forum/index.php?topic=2268.msg11649#msg11649

[Paperback Writer]

Here's another example of an early '67 390 engine without the "Powered by Ford" valve covers - the one's with the PCV hole located in the center of the passenger side cover...

http://www.streetsideclassics.com/vehicles/2709-atl/1967-Ford-Mustang

[WT8095]

For future reference on the car PW posted (the link will probably disappear after the car is sold).

VIN 7F02S124930, build date 25L.