69 Z/28 header & reverse linkage recommendations - Team Camaro Tech
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post #1 of 80 (permalink) Old Aug 23rd, 14, 06:09 PM Thread Starter
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69 Z/28 header & reverse linkage recommendations

After doing some research, is the tri y headers the only header that will allow the use of the factory reverse linkage in a 69 camaro?

Thanks

Kelvin
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post #2 of 80 (permalink) Old Aug 23rd, 14, 06:54 PM
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Re: 69 Z/28 header & reverse linkage recommendations

I didn't know that Thorleys had that option. I removed my lock out reverse rod 40 years ago. I did rig up a push button back up lamp switch on my shifter body though.

I had Thorley 376Y1C just recently, good torque header. I went with Dougs now.

Don
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post #3 of 80 (permalink) Old Aug 23rd, 14, 07:30 PM Thread Starter
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Re: 69 Z/28 header & reverse linkage recommendations

the stock linkage has to be modified to work with the tri ys but it has been done. I'm just curious if anyone figured a way to make the reverse linkage work with a conventional 4 to 1 header.

Kelvin
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post #4 of 80 (permalink) Old Aug 23rd, 14, 07:32 PM Thread Starter
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Re: 69 Z/28 header & reverse linkage recommendations

On a side note,
Don
Did you feel that the tri y headers choked your motor in the higher Revs?

Kelvin
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post #5 of 80 (permalink) Old Aug 23rd, 14, 08:06 PM
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Re: 69 Z/28 header & reverse linkage recommendations

Quote:
Originally Posted by xxxg00w0pilot View Post
On a side note,
Don
Did you feel that the tri y headers choked your motor in the higher Revs?
No, I did not notice any restrictions , I did uncork and put on a mustang dyno, motor pulled up to 6138 rpm before leveling off. Forth gear pull with 3.73 gear recorded something like rear wheel hp of 373 at 6138 rpm, . This was with the older set of AFR heads. I have not run the dyno since going to the AFR street eliminator 195 heads with 8mm valves and dual springs. All of this was on a hydraulic roller. I am now running a forged 383 and a 750 holley with Vsecondaries.
The car ran better or screamed better with my 850HP Holley but mpg is in the sewer. I built this motor for the street and powertours. I enjoy 23 mpg at 70-75mph at 2350+- rpm running a TKO 600.
The triY's actually help bottom end torque, don't misjudge them. Like I said, this is not a race car but a decent street cruiser but it will still scream. I find myself many times not using second gear as I just don't need the pull or acceleration. Guess that's part of getting old.

Don
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post #6 of 80 (permalink) Old Aug 23rd, 14, 08:22 PM
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Re: 69 Z/28 header & reverse linkage recommendations

I can't even begin to tell you what brand headers were on my Z when I bought it, but there was no reverse rod at that time. I bought a reverse rod thru Rick's in 2000, installed it and worked fine with no interference. Here is a pic that closely resembles what was installed.
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06A 1969 Camaro Z28 X33D80 69 B 711 Black Stripes Console w/tach and gauges.
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post #7 of 80 (permalink) Old Aug 23rd, 14, 10:13 PM Thread Starter
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Re: 69 Z/28 header & reverse linkage recommendations

Thanks Don,
I still have my original 302 in my car is why I asked & we all know that motor wants to be spun high.

Kelvin
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post #8 of 80 (permalink) Old Aug 23rd, 14, 10:14 PM Thread Starter
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Re: 69 Z/28 header & reverse linkage recommendations

Thanks for the pic Gary,
Hopefully someone will know what brand of headers you have

Kelvin
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post #9 of 80 (permalink) Old Aug 24th, 14, 06:07 AM
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Re: 69 Z/28 header & reverse linkage recommendations

Quote:
Originally Posted by xxxg00w0pilot View Post
Thanks Don,
I still have my original 302 in my car is why I asked & we all know that motor wants to be spun high.
When selecting your headers, I feel a person needs to determine what are you going to do with this motor, I know 302 can be spun high but is it needed? Yes the 302 makes hp with the right equiptment and to do so you are talking about high compression, huge ported heads, big valve springs like 1.625" , titanium valvetrain , a huge cam , roller lifters, and massive fuel induction as well as header tube size 1.875" or larger.
Then you are looking at rear end like 6.14 and decent tires and suspension to make the car fly. I have done this with a 301 ( oversize 283) , the 302 over bored into my 55 modified production car.
Yes the motor will rev but do you use that combo for the street cruiser? Is there enough side street to do this in front of the public or is it safe? Not trying to kill your dream but its asking , are your doing what your motor wants or what you want.
Just trying to put it all in prespective.
I started out with 1.625 Hookers for the street trim, as torque is what the motor needed.
Just my 2 and I don't condone any type of street racing.

Don
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Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #10 of 80 (permalink) Old Aug 24th, 14, 09:50 AM
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Re: 69 Z/28 header & reverse linkage recommendations

Quote:
Originally Posted by 69Z28 View Post
I can't even begin to tell you what brand headers were on my Z when I bought it, but there was no reverse rod at that time. I bought a reverse rod thru Rick's in 2000, installed it and worked fine with no interference. Here is a pic that closely resembles what was installed.
Hey Gary I am looking for a reverse linkage to fit my car with headers as well. Also would like to have my reverse lights working while at it. My understanding is that the reverse linkage acts as the reverse lock out and back up light activator. I think one rod connects to the steering column which is where the reverse light switch is located.

I have Hooker Super Competition Headers. Do you recall the part that you ordered. I would like to get the same set up.

Thanks

Grandma, 69.5, Z/28 Finally Done! Well almost...

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post #11 of 80 (permalink) Old Aug 24th, 14, 10:42 AM
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Re: 69 Z/28 header & reverse linkage recommendations

I've copied this reply in from my earlier response to a header fitment question:

I recently installed a set of Dynatech headers in my'69 SBC. They clear the 800 series PS box without any "massaging", but it's close. They are 1 5/8 x 1 3/4 stepped and ceramic coated. The ball & socket connectors are fantastic, automatically adjust for minor fitment issues. Mine connect to a 2 1/2 Flowmaster system. The number is 740-11210 and I got them from Summit. They also tuck up very tight and out of the way. I'd buy them again without question.

I know that this doesn't directly answer your question about the factory reverse linkage (mine is gone), but Dynatech actually made headers to fit a Camaro with PS. Apparently other manufacturers did not expect anyone to have PS. They should ship a hammer with each set to fix the problem for their headers. If Dynatech designed its headers for the PS fitment, then perhaps they've also designed them to accomodate the reverse linkage too. Give them a call.
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post #12 of 80 (permalink) Old Aug 24th, 14, 10:43 AM
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Re: 69 Z/28 header & reverse linkage recommendations

Quote:
Originally Posted by 69z28freak View Post
Hey Gary I am looking for a reverse linkage to fit my car with headers as well. Also would like to have my reverse lights working while at it. My understanding is that the reverse linkage acts as the reverse lock out and back up light activator. I think one rod connects to the steering column which is where the reverse light switch is located.

I have Hooker Super Competition Headers. Do you recall the part that you ordered. I would like to get the same set up.

Thanks
Mike, don't want to hijack the thread here but a while back , someone posted pictures how they welded up some rods to work the bellcrank and around the headers. Can't recall who it was but that's what he did . Wasn't pretty but you could not see it from outside the hood.

Don
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Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968

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post #13 of 80 (permalink) Old Aug 24th, 14, 11:13 AM Thread Starter
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Re: 69 Z/28 header & reverse linkage recommendations

Quote:
Originally Posted by zdld17 View Post
When selecting your headers, I feel a person needs to determine what are you going to do with this motor, I know 302 can be spun high but is it needed? Yes the 302 makes hp with the right equiptment and to do so you are talking about high compression, huge ported heads, big valve springs like 1.625" , titanium valvetrain , a huge cam , roller lifters, and massive fuel induction as well as header tube size 1.875" or larger.
Then you are looking at rear end like 6.14 and decent tires and suspension to make the car fly. I have done this with a 301 ( oversize 283) , the 302 over bored into my 55 modified production car.
Yes the motor will rev but do you use that combo for the street cruiser? Is there enough side street to do this in front of the public or is it safe? Not trying to kill your dream but its asking , are your doing what your motor wants or what you want.
Just trying to put it all in prespective.
I started out with 1.625 Hookers for the street trim, as torque is what the motor needed.
Just my 2 and I don't condone any type of street racing.
Good points

Kelvin
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post #14 of 80 (permalink) Old Aug 24th, 14, 07:47 PM Thread Starter
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Re: 69 Z/28 header & reverse linkage recommendations

Thanks for the info Chris
I'll call dynatech tomorrow

Kelvin
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post #15 of 80 (permalink) Old Aug 25th, 14, 10:46 AM
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Re: 69 Z/28 header & reverse linkage recommendations

There are also multiple new headers from Hooker that have just been released for this application also. They have great clearance around the power steering box, come in 1-5/8", 1-3/4" and 1-3/4" to 1-7/8" stepped tube versions and are available with stock port or D-port flanges. If you can post up a picture of your back-drive linkage where it lays in relation to the firewall I can tell you if they will be compatible with it or not.
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