Topics

16

Originality / Chamber exhaust, to be or not to be?

« on: February 26, 2016, 09:37:47 PM »

Gary caught my attention about a small detail on chamber exhaust and we thought it would be a worthy discussion here.  I'm going to provide some pictures for some questions I have.  Please feel free to comment, I'd like to learn something.

We are under the impression that the rounded exhaust clamps are chamber exhaust only.  I knew my car still had a pair of these original style clamps. I was also told these particular hangers are moved further back on the car to facilitate holding the chamber mufflers.

Now that I look at these hangers closer, they do appear to be bent more towards the front of the car to hold the current crossflow system.  They also appear to me to be mounted back a bit further than what I would normally see on a car, almost above the rearend housing.   It has me wondering, are these hangers originally for a chamber exhaust system??

Here are some pics of the hangers...






Another question.  I'm pretty sure these tailpipes are original to the car, or at least put on very very early in the cars life.  An oddity I'd like clarification on.  Maybe this is nothing but where the tips are cut at an angle, The driver side doesn't come to a point on the top, but rather has the sharp part of the angle missing.   Anyone seen this before?  Maybe one tailpipe has been replaced with an over the counter?? 



Couple other pics I took that may or may not help.  Original hanger on the driver side tailpipe, and a bottom shot of the passenger side tailpipe.  Ignore the black widow cobweb on the last shot.



If there are any other shots needed to help determine if this was a chamber exhaust car, please ask, I'll do the best I can to assist.

17

General Discussion / Correct Style Engine Comparment Harness?

« on: February 14, 2016, 12:27:04 AM »

Who is making a good engine compartment harness nowadays?  Heartbeat?  Ricks?  Other suggestions?

I'm not too worried about what color a certain plastic connecter might be, but I do want a harness that represents the original that functions correctly with plastic support clips and such so it fits as it should.

Any help appreciated,
Larry

18

General Discussion / Parts??

« on: February 11, 2016, 12:38:09 PM »

Is there an area here where someone could ask or look for parts? 

19

Originality / 69 RS parking lights

« on: February 09, 2016, 10:34:50 PM »

For some reason it sticks in my head that GM stopped putting the stainless trim around the front parking lights on the RS at some point during production. 

Is there a time frame for this?  Or is my memory fuzzy.

Thanks
Larry

20

Garage Talk / 571 CI Dyno session

« on: February 09, 2016, 08:28:39 PM »

This is an engine my father had Tony Bischoff build for his Pontiac.  Pump gas street car, aftermarket block, Ohio 4.750" crank.  Hats off to Tony, we had about 4 weekends of dyno time on this engine until Tony was happy with it.  This was one of the earlier sessions experimenting with carbs and timing.  Engine safely goes to 7,000 but peak HP was found at 5700 so pulls were kept to 6,000.  Torque never dips below 700 for the entire pull.  It's a ball on the street.



https://www.youtube.com/watch?feature=player_detailpage&v=5WswK-m-zIA   

21

Garage Talk / 6.0 LS 72 blazer

« on: February 04, 2016, 11:14:34 PM »

Since we seem to be discussing other things I'll throw one in the mix for giggles.  Hopefully I don't get banned for non Camaro stuff.   Well technically there is a Camaro in the video that doesn't fare too well.
     This is my 72 Blazer 4x4.  I did a 6.0 LQ4 swap in this one, I built the 4L60E behind it, installed 3.73's and run 33" tires on it.  Engine is stock with my custom SD tune in it.  It ran so good I just had to take it to the track.  I'm racing a (brand new at the time) 2010 SS Camaro and left him scratching his head.  Boy did he get razzed in the pits after this race 

If this isn't beyond the rules, I'll post the dyno session for the 571 cubed Pontiac Tony Bischoff built for my father.

https://www.youtube.com/watch?feature=player_detailpage&v=msgSc3S-yHA

22

General Discussion / Power steering

« on: January 27, 2016, 12:41:43 PM »

Anyone possibly have a good picture of the correct routing of the power steering hoses on a 69 Z they wouldn't mind posting?

Over the weekend I've seen some very nice 69 Z's and it struck me as odd that some hoses were routed down behind the driver side motor mount, along the oil pan and up to the PS pump, while others were right there on the frame front and center, straight from the box to the pump.

23

Decoding/Numbers / Hurst shifters

« on: January 13, 2016, 06:25:21 PM »

I'm sure this has been gone over, but a search didn't yield me anything useful.

I've found 2 hurst comp plus shifters in my stash, and I believe them both to be original OEM, they both have molded in rubber inserts for the shift rods, round push in handles etc....

I was hoping someone here could tell me how to read this date code and possibly there is a hint as to applicaton?

1st one...   890432M

2nd one...  1280D31D   

I think the second one is a late 68 application for the 69 model year?   Maybe the first one is a later 69 application?

Thanks

24

General Discussion / radio knobs

« on: December 26, 2015, 10:54:42 PM »

Simple question, were the 69 radio knobs all chrome or black with chrome trim?  I see the restoration houses offer them in both versions.

25

General Discussion / Question on deluxe door panels

« on: December 12, 2015, 01:02:34 PM »

My 69 is originally equipped with white deluxe houndstooth, still original and unrestored and intact.  I've had a complete deluxe interior kit wrapped up for years, I had planned to replace all the interior.  I unpackaged it the other day to find out the deluxe door panels have black carpet along the bottom.
 
My original door panels on the car have a houndstooth pattern along the bottom that matches the seat inserts, it's not black carpet.

I never really paid that much attention to it until now.  I'm pretty certain this interior has never been tampered with.  So which is correct?

I've looked around at door panels and can't seem to find them with houndstooth on the bottom.  Any insight is appreciated.
Thanks.

26

General Discussion / Component ID steering questions

« on: December 10, 2015, 12:51:57 PM »

I posted in another section about checking steering components so I decided to look through the component ID section and sure enough, some details are listed there.   This posed another question.
Z28's with and without power steering are listed but only the power steering examples list the part numbers for the shorter steering arms. 3954875 and 76 for LH and RH respectively.
  Non power steering Z's are shown as using the shorter steering arms as well but no part numbers shown.  Are they the same between power and non power?? 

Another question.  Both power and non power are shown to use the same 5.8" pitman arm 3953227 but then it goes on to say that power steering and non power steering  pitman arm splined holes for the attachment to the steering box were different sizes.
They have the same part number??

27

General Discussion / Anyone use the console conversion harness?

« on: December 08, 2015, 05:33:59 PM »

Just curious how it worked out.  I'm referring to the harness made to convert a non console gauge car to console/gauges..
Mine is a non gauge car however 30-something years ago someone stuck an original gauge console in the car.  I'm not certain they were ever hooked up so on my ordering spree I decided to grab one of these conversion harnesses just in case as well as a console harness to go with it, just in case.  My wife decided since the console was already in the car, lets use it.

28

General Discussion / Question regarding original dealer info now available

« on: December 05, 2015, 01:14:04 PM »

I just want to make sure I'm clear on this.   Using the link provided and reading it over.  At the bottom it states from serial number 508855 to 587275 is not available.

I want to make sure I understand, that if my serial number falls in between these then there is no sense in sending away for documentation?   Do I understand this correctly?

29

General Discussion / Tires

« on: December 05, 2015, 04:15:58 AM »

I know this has probably been asked to death, and I've searched with no real definitive answers.

What size tires are you getting away with on the front of a 69 RS Z28 Camaro?   I keep seeing 215/65-15 pops up a lot but not really clear on whether the cars are RS's or not in the examples described.   This tire is a little shorter than the E-70-15's, but possibly slightly wider, it may or may not work.
   I have a changer/balancer so I'm going to experiment with some 255-60's on the rear with used tires I have laying around.  I don't have any 215-65's here to try though, kind of an odd size I don't use on anything else.  Any insight is appreciated.

Car has original 15x7's all around.

30

General Discussion / Tachometer picture/wiring question

« on: December 03, 2015, 07:29:05 PM »

Going through my stash and have this tach in a box.   I'd like to temporarily run wires to it from a running car just to check and make sure it still works.  My problem is that most factory tachs I deal with have "GRD" or "+" "-"

This tach has none of that.   Could someone possibly tell me from this picture which is key on and which is coil??  I don't want to fry this thing accidently.  Thanks