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FE Power Forums => FE Technical Forum => Topic started by: 440sixpack on November 22, 2018, 03:18:27 PM

Title: Pent Roof Valve Cover ID
Post by: 440sixpack on November 22, 2018, 03:18:27 PM
How can you tell repop valve covers from originals ?  I have a set off the 428 I bought, it has a '67  S code intake so I'm suspicious these came from the same car.    they have no numbers or markings of any kind if that means anything. 

mine are in better shape but they're identical to these.


https://www.ebay.com/itm/1967-Ford-Fairlane-427-Pent-Roof-Original-Valve-Covers-1968-Galaxie-1968-Mustang/192424472813?hash=item2ccd6470ed:g:9-QAAOSw9p9aV5Bw:rk:6:pf:0
Title: Re: Pent Roof Valve Cover ID
Post by: jayb on November 22, 2018, 08:48:18 PM
Those actually aren't pentroof covers, but they are like the chrome covers that came on some 428CJ engines.  My original set has some numbers stamped into the top side of the covers, between the oil hole and the end of the cover.  Both covers have this stamping; doesn't look like a date code but I'm not sure what the numbers/letters indicate.  I would imagine that most, if not all, of the Ford covers have this stamping, but I haven't seen enough of them to know for sure...
Title: Re: Pent Roof Valve Cover ID
Post by: winr1 on November 22, 2018, 09:16:26 PM
Those look like the covers on my 65 F100 352



Ricky.
Title: Re: Pent Roof Valve Cover ID
Post by: GJCAT427 on November 23, 2018, 03:49:07 PM
Most of the CJs I had were all aluminum and topped finned. I acquired a set of "snake" covers a couple of yrs ago. Both have been repoped  I have seen some of the chromed steel ones, but I thought they were a 428 T-Bird item. Never seen them repoped painted steel or chrome.
Title: Re: Pent Roof Valve Cover ID
Post by: My427stang on November 23, 2018, 05:12:43 PM
Those aren't CJ, not sure what those came on, but I have seen a lot of those flat top chrome covers over the years.   CJs came with either chrome Power by Ford, finned alum no letters, or lettered finned alum.

However, as stated before, definitely not Pentroofs, Pentroofs are the big ones
Title: Re: Pent Roof Valve Cover ID
Post by: BruceS on November 23, 2018, 07:08:00 PM
A friend of mine has a '66 and a '67, both original R-Code Fairlanes.  The '66 has chrome tall pentroof covers and the '67 has chrome "Power by Ford" covers.  The PbF covers are of course a rounded design, except where the breather or PCV grommet is installed.  The covers shown in this EBay ad are '65-'66 non-427 covers IMO. 
Title: Re: Pent Roof Valve Cover ID
Post by: 440sixpack on November 23, 2018, 07:56:39 PM
I can't find where ones like this were reproduced either.  they're very heavy so I'm going to assume they're OEM for something.    if they're actual Ford parts I think I'll use them  it's not like the 428 in my '76 highboy will ever be " correct "  anyway.
Title: Re: Pent Roof Valve Cover ID
Post by: 427Fastback on November 23, 2018, 08:00:43 PM
I have only ever seen those on 66/67 390 Fairlanes.Mustangs got chrome powered by Ford.The first CJ's got chrome PBF covers before switching to the cast aluminum covers..As far as I know the chrome pentroofs were only used on the mid 60's 427 cars....
It is possible the ones pictured could have been installed on early 67 Mustang/Cougars but I am not a expert...
Title: Re: Pent Roof Valve Cover ID
Post by: JamesonRacing on November 23, 2018, 09:56:04 PM
Those were original for 66 Fairlane 390GT engines (most anyway). They are too short to clear most adjustable rocker arms.  The valve cover first appeared in 65 I think, and was used on passenger car/truck FE applications in 65 and 66, but painted instead of chrome (black for 65, blue for 66).  67 was the introduction of the PBF round top covers.  Some Cyclone GT engines has the same valve cover with a cast aluminum plaque that read "Cyclone 390" or something like that.

Pentroof covers are much taller.  Original 427 car valve covers didn't have breathers.  Marine valve covers did have breathers.
Title: Re: Pent Roof Valve Cover ID
Post by: rcodecj on November 23, 2018, 10:21:26 PM
I have seen that valve cover on a 67 mustang GT coupe back when it would have been around 5 years old.
It's possible but doubtful that anyone would have changed the valve covers at that time.
The car was completely stock, stock wheels, and everything else.
My friend still has them I believe.
Title: Re: Pent Roof Valve Cover ID
Post by: FERoadster on November 23, 2018, 11:18:33 PM
Not an expert but I consider myself "knowledgeable"  about FE VC's
I've got 3 or 4 sets of those but don't recall any being chromed, I'd have to check.
Here are pictures of the VJ Covers and samples of 406-427 Chromed Pent roofs. From what I understand the difference from 406 to 427 might have only been the decal.

The CJ covers are on the  left in the finned aluminum photo (center a few of my Cal Custom) Cobra covers and Edel. on the right.

Richard


Title: Re: Pent Roof Valve Cover ID
Post by: TomP on November 24, 2018, 07:17:03 PM
I am surprised some of you don't know ::)

66 390 GT only, the early 67 used the same left side but had a unique right side made from a 361-391FT valve cover with a tab remove and chromed.

But if we are speculating... wasn't there a chrome dress up package for the 7 Litre that used these valve covers, a chromed master cylinder cap and rad cap?
Title: Re: Pent Roof Valve Cover ID
Post by: FERoadster on November 24, 2018, 07:27:36 PM
If there were chromed versions then I'll have to find some 

Richard
Title: Re: Pent Roof Valve Cover ID
Post by: AlanCasida on November 24, 2018, 07:36:24 PM
I am surprised some of you don't know ::)

66 390 GT only, the early 67 used the same left side but had a unique right side made from a 361-391FT valve cover with a tab remove and chromed.

But if we are speculating... wasn't there a chrome dress up package for the 7 Litre that used these valve covers, a chromed master cylinder cap and rad cap?
I have a pair too. I also thought they were part of a dress up kit for 65-66 Galaxies.
Title: Re: Pent Roof Valve Cover ID
Post by: chris401 on November 24, 2018, 09:24:05 PM
Those were original for 66 Fairlane 390GT engines (most anyway). They are too short to clear most adjustable rocker arms.  The valve cover first appeared in 65 I think, and was used on passenger car/truck FE applications in 65 and 66, but painted instead of chrome (black for 65, blue for 66).  67 was the introduction of the PBF round top covers.  Some Cyclone GT engines has the same valve cover with a cast aluminum plaque that read "Cyclone 390" or something like that.

Pentroof covers are much taller.  Original 427 car valve covers didn't have breathers.  Marine valve covers did have breathers.
X2 65-66
A builder told me that the fadded, cheap looking chrome was oem Ford and the knock offs or re chrome were brilliant like the EBay ad.

The large hole is right side only and the twist in is the left. The left side large round hole was for either road draft or PCV with a large grommet. As for the painted valve covers in stock form they do not clear oem adjustable rockers as mentioned.

Richard, did those overlap into 64 and 67?
Title: Re: Pent Roof Valve Cover ID
Post by: Heo on November 24, 2018, 11:31:31 PM
I have a 64 with that under hood dress up group
It have Chromed "baldy" thunderbird script covers
with no hole filler and PCV is on intake
Title: Re: Pent Roof Valve Cover ID
Post by: GJCAT427 on November 25, 2018, 11:37:13 AM
OK guys, Here are some pictures of "CJ" valve covers that I have. The first set are the questionable ones. And yes they are factory chrome. I thought they were from a 390/428 t-bird dress up kit. The second ones are the snake aluminums. The third are from a standard 390 that a guy had on a pickup. I also have the finned aluminum ones like the snakes less the snakes.  I have been told that they all were for 428s. So whats the verdict? Feroadster I can`t believe you have never run across the ones in the first photos.
Title: Re: Pent Roof Valve Cover ID
Post by: JamesonRacing on November 26, 2018, 10:39:25 AM
All those covers will bolt onto CJ heads. 

The first were never factory installed on a 428CJ

The chrome PBFs were the most common 428CJ valve covers, and were used on 390GT engines from 1967-on

The aluminum covers with the snake were not factory installed (I'm sure there's room for debate on this) but were a popular dealer accessory item. 

Finned aluminum covers without the snake logo were used on later 428CJ engines and also were found on some industrial applications (leftovers?)
Title: Re: Pent Roof Valve Cover ID
Post by: chris401 on November 26, 2018, 01:31:19 PM
OK guys, Here are some pictures of "CJ" valve covers that I have. The first set are the questionable ones. And yes they are factory chrome. I thought they were from a 390/428 t-bird dress up kit. The second ones are the snake aluminums. The third are from a standard 390 that a guy had on a pickup. I also have the finned aluminum ones like the snakes less the snakes.  I have been told that they all were for 428s. So whats the verdict? Feroadster I can`t believe you have never run across the ones in the first photos.
Were all factory 428 Cobra Jet engines hydraulic lifter engines? Assuming your first set are identical dimensions to the common painted ones, those do not clear factory adjustable rockers. If they do they have to be slightly taller.
Title: Re: Pent Roof Valve Cover ID
Post by: cjshaker on November 26, 2018, 03:01:50 PM
Were all factory 428 Cobra Jet engines hydraulic lifter engines?

Yes, even SCJ engines were hydraulic.
Title: Re: Pent Roof Valve Cover ID
Post by: chris401 on November 26, 2018, 06:56:22 PM
Were all factory 428 Cobra Jet engines hydraulic lifter engines?

Yes, even SCJ engines were hydraulic.
Cool, so those would have worked. If factory CJ I wonder why they carried over for 2 1/2 years when other covers had been running? Ford........