Topic: 67 Hipo z-bar, need picture

[bhoulis]

Does anyone have a picture of an authentic 67 Hipo clutch z-bar, the one that goes with the longer 390GT clutch fork. I've spent a lot of time searching the web but can't seem to find anything that seems accurate. I know they're super rare but somewhere sometime someone must have taken a picture of one. Even a pic of one installed on a car would be good. Any help much appreciated. Brian

[Texas Swede]

The book, 289 Hi Performance Mustang 4th edition by Tony Gregory has a couple of pictures showing
all the HiPo Z-bars and their differences.
Texas Swede

[67350#1242]

Here are some pictures I found in my files.  I am not sure if the part # on the tag matches up with the correct 67 Z bar, but the overall look seems right.
Kurt

[bhoulis]

Thanks for the pics Kurt but I don't believe that's a 67. Looks like a Boss 302 style, same as I have. Will work if you use the shorter clutch fork for a regular 289. 67 hipos used the longer, 12 inch, 390 clutch fork. Using this bar with the 390 fork puts the clutch release rod at a crazy angle. After mocking up my stuff it would seem that the lower arm should be more towards the middle of the bar, almost in line with the upper part. I started a thread over at SAAC forums and it has pics of what my setup looks like. I tried looking up the Tony Gregory book that Texas Swede suggested and surprise! It's out of print, not available, just like the z-bars. I have a few saved images on my computer of what were described as 67 hipo bars and they all look like the B302 style with the lower arm tight to the motor. Am wondering if Ford made the B302 style the service replacement and told people that they would have to change the fork for proper operation. Maybe that's why all the 67 hipo bars you see pics of are B302 style. Fun, frustrating, I don't know. Spending more time researching and hunting parts than actually working on it. B

[67gta289]

Here's to hoping that some Ford documentation will help.

The item pictured is listed as C7ZZ-7528-A.  That is suspicious because the 1967 MPC associates this number with a 200 cubic inch 6 cylinder.

From an MPC perspective, the 67 MPC does not call out the 289 special.  For a generic 289 the part called for is C7ZZ-7528-C.  There are four variations, version A through D.  Picture #2 attached.

Moving on to the 68 (60-68) MPC the generic 289 uses C7ZZ-7528-G whereas the 289 special uses C7ZZ-7528-H.  It is interesting to note that the 1967 versions A through D are now shifted out to E through H.  Picture #3.

The 65-72 MPC reaffirms the C7ZZ-7528-H part for the 67 289 special, and adds the 68 GT350 as well using the same part.  The Boss 302 uses the D0ZZ-7528-D version.  No picture included here.

I looked through Mannel's Small Block V8 digest, and there is no reference, including in the appendices.

[Texas Swede]

Yes, 68 J code Mustangs used the same Z-bar. C7ZZ-7528-H.
The major difference is the bend of the upper bracket which is much lower and
the end is way outside the end of the round pipe in comparison with the 65 and 66 bars.
Texas Swede

[Bossbill]

Thanks for the pics Kurt but I don't believe that's a 67. Looks like a Boss 302 style, same as I have.

Yep, that's the same "top section" style of the B3. [edit]

Will work if you use the shorter clutch fork for a regular 289. 67 hipos used the longer, 12 inch, 390 clutch fork.

I sourced the longer fork and, of course,  I have another the same Z as you sitting on the shelf all nicely restored for the Shelby. Sigh.

Using this bar with the 390 fork puts the clutch release rod at a crazy angle.

Sure, Why not. I don't have enough aggravation.

Am wondering if Ford made the B302 style the service replacement and told people that they would have to change the fork for proper operation. Maybe that's why all the 67 hipo bars you see pics of are B302 style.

Sounds reasonable!

Fun, frustrating, I don't know. Spending more time researching and hunting parts than actually working on it. B

Yes. All I do is search, with a little time thrown in for restoring.

[67350#1242]

There is a drawing of the 67 289HP equalizer bar in the 67 shop manual part 5-3 Clutch section 2 page 5-10.  Of course no dimensions but it looks pretty much the same as those pictured here with the lower arm attached on the engine side of the tube jogging outward and down with the curved upper arm.

[67350#1242]

The item pictured is listed as C7ZZ-7528-A.  That is suspicious because the 1967 MPC associates this number with a 200 cubic inch 6 cylinder.

I think the pictures I posted must be mislabeled as an -A.   I'm sure the 6 cylinder equalizer bars had a much longer tube section to reach from the block to the frame rail.
Kurt

[67350#1242]

Came across an ad on VMF with pictures of  -H bar:
https://forums.vintage-mustang.com/1967-through-1968-mustang-parts-sale/933041-67-hipo-shelby-z-bar-clutch-equalizer.html

Looks the same as the one I posted previously.

[Bossbill]

I found those same pics and was posting them -- when you beat me to it.
I think your -A bar is actually a -H bar, but the slant on one bar of the H closed up and made it an 'A'.

I followed bhoulis' (Brian) lead and mocked up my K/390GT fork on a complete 66 block I have under the bench (on rollers) with this -H Z bar and the angle IS extreme. It can't work this way.

In order to get anywhere close to the K/390 fork the lower arm on the -H Z bar would have to more inline with where the top arm is welded. It's about 3" too far in toward the engine.

I think the MPC has it wrong and that this arm is meant to go with snake tongue fork.

[bhoulis]

Or the MPC has it wrong and the 390 fork is wrong. B

[Bossbill]

Here's to hoping that some Ford documentation will help.

John -- can you list out what the 68 MPC lists for part 7515 (for Mustang)?

[67gta289]

Here you go

[bhoulis]

Interested to see what the 67 MPC and later year MPCs say. Also what z-bar is called out for the B302s throughout the years as well as for the hipos? Brian