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  #81  
Old 08-28-2020, 01:28 AM
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Quote:
Originally Posted by 1967Z28 View Post
Bill Thomas has Hobrecht roll bars listed in his 1970 catalog. Do you see a part number stamped on this one? The bar you have does not look like one that would fit a Camaro floor pan so it's interesting that you say it came out of a '68 Z.
I believed the person the roll bar came from and he still has the car. I will definitely take a look for numbers on the bar. Do you mind posting the numbers or photo from the catalog? Thanks. If it turns out its not a match I could always let it go.
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67 Camaro L78
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Old 08-28-2020, 02:28 PM
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Interesting sticker.....
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  #83  
Old 09-22-2020, 03:25 AM
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Update: With the help of Russell (mr.4speed) and Anthony (AnthonyS) we were able to determine the roll bar will fit like a glove!

Also, I found a 1974 Hobrecht Catalog that confirms the roll bar is a real deal competition bar for 1967-1969 Camaro part CS728!
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67 Camaro L78

Last edited by jbtech; 09-22-2020 at 03:45 AM.
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  #84  
Old 09-22-2020, 04:04 AM
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That’s great!

And thanks for sharing that whole page of part numbers; that may help a lot of people identify bars.

Yay!
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  #85  
Old 09-22-2020, 10:58 AM
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I have a Hobrecht single loop competition bar, now I may be able to figure out what application it was meant for. Thanks for posting the info!!

Jose, where on the bar did you find the part number?
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  #86  
Old 09-22-2020, 03:25 PM
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Quote:
Originally Posted by L_e_e View Post
I have a Hobrecht single loop competition bar, now I may be able to figure out what application it was meant for. Thanks for posting the info!!

Jose, where on the bar did you find the part number?
You are welcome. Should be on one of the baseplates. You will also see a HOBRECHT stamp. I'm going to post the full catalog soon in the Day2/Modified Stuff section.
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  #87  
Old 11-02-2020, 06:41 PM
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Work on the car has has slowed down. My family is outgrowing our living situation and we are planning to move this coming summer God willing.

One of our must have's is going to be a decent size garage. Until then I'm doing a lot more selling than buying online to speed up the process of getting a new home. My car is outside under a car cover at the moment and it is such a drag to work on it. Moving the tools, welder, etc in and out alone takes up too much time so I've just decided to stop for now.

But some progress has been made.

When my engine builder degree'd the cam the specs were way off (they sent the wrong one) so that started a cascade of changes to the build.

I called Chris Straub and now I have a new cam on the way:

Cam Specs:
BBC Gen6 Stepped face Fit Camshaft (No cam shimming needed)
Adv. 288/300
.050" 229/241
Lift 600/570 with 1.7
109 Lobe Sep

Chris said I should be shifting around 6700 - 6900 rpm (Fun!)

Thus,
I also decided to run 4.33 gears since I will have more rpm's to play.

With a 2.20 first gear and 26" Tire, my SLR is about 9.5

If I decide to run my HONE overdrive the 4.33 becomes 3.031 and I can still cruise on the freeway around 2500rpm.

Brakes:
I'm running original '69 front disc brakes since that's what we would have pulled from the wrecking yard and I'm going to sell my '67 brake brackets and calipers.

Intake: Good News
Chris Straub recommended that if I wanted to stay all GM to run a 198 intake. I sold my 198 intake but I will just run a 163 and cut out the divider. With this setup he says I should get an easy "500/500" and still be able to run 91 octane and full timing.

Flat Hood: Good News!
And I've confirmed that a 163 using a GM air cleaner etc WILL fit under a flat hood. The "Low" spot is the bracing near the front of the air cleaner. The bracing is in the same location for an SS hood as a flat hood. It will be snug but I'm glad I won't lose the HP using a 569 intake. The key is using the right engine mounts that will not put the engine too high. I may mill the top of the intake just a tad for insurance.
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Last edited by jbtech; 11-02-2020 at 08:14 PM.
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  #88  
Old 11-02-2020, 08:26 PM
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Be sure to get a good heavy duty drive shaft for this build. Your drive shaft RPMs are going to be very high and if you don't have a strong enough drive shaft you will have a bad vibration.
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  #89  
Old 11-02-2020, 09:00 PM
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Hello Jose,
Great update on the build!
How's this for a weird coincidence...
We bought that exact same cam package from Chris Straub a few years back, originally for the 454 Monza project, but now it's installed in my buddy's 427 BBC motor for his '69 SS396 El Camino that he "daily drives" a lot. THAT was the motor you saw at Gary's Keeling's shop that he just finished up prior to your consultation. We've yet to install or fire up the 427, but should be interesting. He'll use a nice #163 manifold & Holley.
Small world huh??
Cheers
Jerry
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  #90  
Old 11-03-2020, 12:32 AM
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Yay! Great updates!!
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1967 camaro, 427, big block, sleeper, z21

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