Mike's correct, standard single exhaust hanger that came on all '69 Camaros.
Got it confirmed via this CRG thread, as mine was partially cut out: http://www.camaros.org/forum/index.php?topic=12901

Thanks guys. I assumed it was something like that. Just don't recall ever really noticing one on my earlier Z/28 cars. Might have been there...just didn't ever look or notice one before.

The Valve covers with unequal length recess slots on the top rail are 1973 and later the unequal "longer slot is for accommodation of the EGR provision on the intake manifolds.
The date inside the cover says 86.
The early L46 Z28 had no drippers and equal recess slots on the top rail -even my Nov 1969 assembled L46 corvette had no dripper covers. -
the 70 Z28 LT1 and Deuce covers had twist in cap equal length recess slots and drippers
71-72 had equal slots, smooth round hole for PUSH IN Rubber oil fill, and drippers
73 and UP L82 Z28 has unequal slots twist in cap and drippers.

That some great info Jag.

As an aside, it's been discussed here as well as a bit more in depth over on CRG where it's noted that some late built cars comparable with this 10E (Last week of Norwood production) have already shown up with a number of the cars having 70 style dripper covers on them.

At this point in time, 1970 parts were already in full production and did begin to appear on both Camaro's as well as Corvettes. Same holds true for a couple members here with cars built the same week who have contacted me and also have early dripper style covers. From the dates on the covers that came on this particular car, it's since been determined a previous owner must have updated the covers to an over the counter set at some point. I'm really not in any rush to change them right now, but when I do find a set of survivor 70 style early covers such as the 3965543 & 3965544 covers shown below, I will in all likeliness be changing them out.

Other parts on this Nov 3rd car including the bell housing and thermostat cover also share part numbers with the 70 Z/28. Thank you for adding the valve cover info. Lessons on part numbers and change orders are always appreciated. As always...I'm still learning here. :scholar:

https://i.ibb.co/L9cwyr6/Mvc-003s.jpg

https://i.ibb.co/52DFfYb/Mvc-002s.jpg

Between working on underside of the car, I've been busy cleaning other parts including the smog components. I sent the pump off to Bill hodel where he took it apart to remove the veins from the pump so it's functional looking but doesn't pump air any longer. The tubes will be blocked off so everything looks right when I reassemble it, but also won't be popping or backfiring either. The internal parts have been kept so it can be returned to functional service if needed. The pump has been mildly cleaned and detailed to match up with the cars motor having been rebuilt and painted, as have most of the other parts. In cleaning the hoses and check valves it's easy to see everything is original, but is all over the place with dating.

The 7801149 Smog Pump is dated 293rd day of 69 while it was equipped with an early style 29295 Diverter Valve. Both appeared to have always been together and had very similar aging where where nothing looked to have been changed at any point? In addition, the bolts all looked to have never been apart nor did the original gaskets when I separated them for cleaning. Bill Hodel and I discussed the hoses as well since they are dated quite early. Again, they don't appear to have ever been apart and also have mixed clamps with most being 3/69 dated and only one having an earlier 1/69 date.

As I have now learned with a late built car, one can expect the unexpected so I am not going to start switching things around as the parts all appear to have been married to each other for quite some time and I am told that all sorts of oddities exist with late cars where they scrambled to find parts to complete the assemblies. In discussing the hoses further, Bill had said these early hoses and quite rare and very hard to find. The hoses are are 3932476 marked RC GM with a dotted Box and the short hose is 3932478. They have correct 5361992 check valves, and I have all the correct brackets and original RBS marked for the system. Still working on the original smog rails to clean them up to where I am happy with them. More on those at a later date.


https://i.ibb.co/3p8ytz9/IMG-8200.jpg

https://i.ibb.co/qdFQ2LL/IMG-8201.jpg

https://i.ibb.co/S08gsB5/IMG-8197.jpg

https://i.ibb.co/vQ44Ryd/IMG-8186.jpg

https://i.ibb.co/q1n78Pd/IMG-8189.jpg

https://i.ibb.co/GsY1NXM/IMG-8190.jpg

https://i.ibb.co/wMM0CwV/IMG-8187.jpg

https://i.ibb.co/FqKmdMP/IMG-8191.jpg

I want to send my car to your place or A12Pilot for next winter to go bananas on the details!!!

This is serious!!

Ryan W31

Cleaning and detailing is definitely not my favorite task Ryan.:thumbsdown:

I spent a couple hours under the car this afternoon and while I might not have gotten very far with cleaning, I am seeing some great results. First was a bit of degreasing followed by a few passes with the graffiti remover. It actually works pretty well on the floors and has left this au natural finish which looks a little aged. Exactly what I was shooting for, but there's a lot left to do before I'm close to being finished. Here's one section of the passenger side floor and tunnel area which cleaned up rather nicely.

https://i.ibb.co/rQt2zTV/IMG-8208.jpg

https://i.ibb.co/Q70CwLX/IMG-8209.jpg

https://i.ibb.co/nLz2nJC/IMG-8210.jpg

Great pictures Graeme. Great for documentation. Nice job!

Looks similar to my floors when cleaned up....very gray looking vs black

Bravo GW! Hold on a minute while I go get another beer.......

Is that all you retired guys do is groom trails driving rigs like these, work on cars throughout the night when insomnia sets in and drink beer all winter long? :Charley:

https://scontent.fyxd2-1.fna.fbcdn.n...4a&oe=5E674D83

Good plans Graeme

Is that what Tim is doin now? I thought he was running for Mayor??
Live it up!!

You guys................LMAO!

One needs to set reasonable goals in order to accomplish them!

Never seen any of that equipment in Tucson. What's it used for? :)

70 LT-1 valve covers
 

Back in 1989 I purchased NOS covers for my 70 LT-1 Corvette. the part numbers on the box were 3965541 -542 but the part numbers under the covers were the 3965543-544. just like the ones you show in the photo. Curious to why the different part numbers? They both have the equal 3 inch length slots and twist in oil cap.

Sounds like you got an old stock set of covers and not the later renditions made in the 80's where the part numbers had changed. I'd like to find an NOS set of the ones shown above. But nope...gotta stop shelling out the dough as I've been spending away like a drunken sailor.

Somebody else said that a month ago and the phrase has now stuck. (lol)

It’s only money.... you can make more!!

That's what a friend of mine used to say.

It's pretty mild up here for weather this week so I'll likely spend the next couple days making more progress on the car. Today I'll continue with cleaning the underside. With the mild temps I'll be able to pop the doors open to clear the fumes and keep some fresh air about the shop. It's a little harder to do when it's well into the minus temps, but the next couple days are all above freezing here. More to come...

when you removed the rear frame fuel line clamps what style where they did they have the tab that pulled into the frame

70 valve covers
 

There is a set on E bay item number 114014491902 for 150.00

Just got around to pulling the rear clips off the rear frame rails today. Clips are again blue and they did leave blue paint on the bare frame where the clips were removed from. Both clips have the rear tabs but they were both folded in and were not engaged into the holes of the rear rails. Was this the norm on the rear clips? I always thought the tabs would have been engaged but these were not. Pics of the two fuel line clips just removed.

https://i.ibb.co/nPFmMhX/IMG-8224.jpg

https://i.ibb.co/TMVdH5s/IMG-8225.jpg

https://i.ibb.co/GnfHzZ3/IMG-8226.jpg

https://i.ibb.co/BtNLgGY/IMG-8227.jpg

https://i.ibb.co/PcPPgsS/IMG-8229.jpg

Testors transparent blue is a real good match for those fuel line clamps.

Continuing with cleaning the floors...one section at a time. Slow and tedious work but is going to look so much better once its all done. Definitely worth the effort.

https://i.ibb.co/V23h3br/IMG-8236.jpg

https://i.ibb.co/9vTvPSK/IMG-8238.jpg

https://i.ibb.co/rH2sbmS/IMG-8242.jpg

Your floors are looking great Graeme! Cleaning them is slow, tedious, but very rewarding work. I'm curious on your comment about blue paint transfer from the fuel line clip. Clean the frame rail around the clip, I suspect you will find the same bluish hue from a combination of gray primer and LB overspray. That's what I found in that area on my car. Here's a couple of pics from mine that show the floors after cleaning. One pic is where the driveshaft loop was installed when the car was new. All of my clips had the tang engaged in the frame hole, none were folded over.

Those clips were off the rear inside frame rail and doubt any lemans blue paint would have gotten up there above the diff on the inside of the rails? I thought the blue paint traces on the frame was simply the blue from the clips maybe having transferred surfaces from any moisture that the car might have seen from early road use. In any case...it's all good.

Also had the chance to soak the original front springs in evapo-rust for the past week and it cleaned them up rather nicely. Even the original paper tags came out clean after being in there for a week w/o eating the labels. I think these will be going back onto the car when I get to the front end. First I'll have to see if I can find a set of NOS lower ball joints to replace the service units that were installed when the springs were swapped out. That would at least have it back to stock.

https://i.ibb.co/hfd0c2z/IMG-8285.jpg

https://i.ibb.co/KxzM2m6/IMG-8286.jpg

https://i.ibb.co/wS88s5C/IMG-8287.jpg

Beautiful work Graeme!

A little update on the car after taking a break over the holidays for some needed family time. Today I went through every single fastener on the car and the good news is that there isn't much that's missing at all. The bad news is so much of it was painted and fluffed then they redid the motor. That now it has me wanting to strip and clean each fastener to do it right. Next up, I'll be removing the driveline in order to get at all of the areas where it was painted and fluffed. The black paint is actually coming off nicely since they never prepped anything, but I hate working around things like suspension and driveline so all of that will be coming out this week. I looked at all the subframe bushings today and they are all really decent except one on the back of the driver's side where the bottom rubber needs replaced. More to come.

https://i.ibb.co/yXTmy6p/IMG-8442.jpg

https://i.ibb.co/kgm4Mvm/IMG-8443.jpg

https://i.ibb.co/xM4z5LR/IMG-8444.jpg

https://i.ibb.co/HVSgFCS/IMG-8445.jpg

Just unhooked the shifter and pulled the manifolds for some refinishing. Now I'll pull the ignition and motor mount bolts and then it's all coming out. Depending on how accessible everything becomes, I may take it a step further later in the week and pull the front clip. I really want to do a thorough clean up on this car and don't like taking short cuts.

https://i.ibb.co/wKsyvjP/IMG-7950.jpg

https://i.ibb.co/4s7KHFS/IMG-8479.jpg

https://i.ibb.co/XY5G5pW/IMG-8480.jpg

I wish I enjoyed cleaning as much as you. I've got everything out of my car right now, but I hate cleaning.

Pull the two ground straps, fuel line, add the tilter and it's ready for plucking. Just added 250 new songs to my music list for the shop. Time to get busy!!!

https://i.ibb.co/NrcNWqp/IMG-8485.jpg

Exhaust Manifold Dates
 

Graeme,

What are the dates on your exhaust manifolds? Thanxs Dave

Tough to read the driver side Dave, but the #3942527 looks like it's dated A 30 9 if I am seeing it right. It is pretty tough to discern the rough date casting on the drivers' side. The passenger #3946826 is a little cleaner and looks like E 9 9 but that may, in fact, be F if that date makes sense?

https://i.ibb.co/R9YXpR1/A-30-9.jpg

https://i.ibb.co/ctPr8zT/E-9-9.jpg

I was thinking of having my buddy tumble these in his shop. He did an intake on my 68 a couple of years ago and it came out looking great with a factory perfect finish. Has anyone here ever tumbled a set of cast manifolds?

I think Jerry M tumbles them during his restoration process, but that's a huge shipping bill for me to send them from here so I might see how these do at my buddy's shop.

Good work NorCam.

I decided to stay focused on the rear half of the car and dropped the fuel tank and the rear diff out to get better access to cleaning the floors. Once the floors and the springs are cleaned up, the diff will get the same treatment and all the hard lines will be semi-restored before going back onto the frame rails and diff housing. When I dropped the fuel tank, I saw these numbers "47" written in red if that means anything?

https://i.ibb.co/0KGX1kN/IMG-8505.jpg

https://i.ibb.co/rwgF1kw/IMG-8506.jpg

https://i.ibb.co/PcwJFb1/IMG-8531.jpg

https://i.ibb.co/f4Y1wnB/IMG-8507.jpg

With the differential pulled and set aside for clean up, I started looking at the springs and saw this crack on the lower spring on the drivers side. I pulled both pieces and will have to get a new one made to replace it. I now have really good access to everything out back and will get all this cleaned up over the next week or two before it starts going back together.

https://i.ibb.co/r29P6Cx/IMG-8537.jpg

https://i.ibb.co/rxSXqBK/IMG-8528.jpg

https://i.ibb.co/SwcQ635/IMG-8529.jpg

https://i.ibb.co/jkqPKqC/IMG-8530.jpg

I think the 47 is a sequence number used on he assembly line. Mine had a "3" in a similar location. I'm curious if you have a mill stencil on your tank similar to mine. I had to do quite a bit of cleaning to get to it.

Graeme
That #47 sequence number my also be on top of your heater box ?
Maybe look with a mirror and a light ?
Nice work.

Mike