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107554 Posts in 12507 Topics by 4812 Members
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76  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 18, 2013, 07:59:00 PM
Well, I didn't think I'd cause such an in depth discussion when I posted my original question! I figured surely someone must have run into this during their restoration, I'd get my answer and continue on with my project. Boy was I wrong!!

Anyway, I thought I would start to tabulate what we know so far from all of the previous posts:

Year    Engine    Build Date     Clamp Type

67         L30          610B               Wire
67         L35          704B               Stamped
67         L35          705B               Stamped

68         Z28          801B              Wire
68         L78          806?               Wire
68         Z28          807C              Stamped
77  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 18, 2013, 01:36:50 PM
Thanks Ed. Looks like mystery continues!
78  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 18, 2013, 01:01:55 PM
Ed - Well, here is more more interesting info. I found this picture in the '68 Chassis manual. Unfortunately, the picture is for a 6 cylinder engine but the interesting thing to note is that it clearly shows the wire type clamp.

Mike - What is the build date on your cars?

It's still a mystery to me why some cars have stamped clamps and others have wire clamps, particularly in light of what Ed reported in an earlier post. It also doesn't look like there is a rhyme or reason as to which size engine got which clamp since the Chassis manual shows a wire clamp on a 6 cylinder engine.
79  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 17, 2013, 07:55:56 PM
Thanks Ed.

My friends Vette is also a 427/390. Not sure of his build date though. I'll ask him what his build date is.

Thanks,

Bob
80  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 17, 2013, 06:29:28 PM
Jerry,

You would think so, right? It would seem to make sense. I'm just not sure which one to use since I've seen both type clamps advertised.

I just had a friend check his '69 427 Corvette he is restoring and it has the wire type clamp. Go figure? I even asked him to check the NCRS judging manual but unfortunately the manual makes no mention of distributor clamps.
81  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 17, 2013, 05:25:55 PM
Jerry,

I've been following a similar thread on distributor clamps but it had more to do with small blocks and the correct finish. My question was more aimed more at big blocks and which type clamp was used. The type of finish will then of course need to be answered as well.

Perhaps other members can take a peek at their big block engine and report back what type of clamp is installed and what month the car was built.

Thanks,

Bob
82  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 17, 2013, 02:09:15 PM
Thanks Mike.

Ed-The engine is a January '68 build. Don't know the exact date since I'm not in frontbofbit at the moment.

Thanks,

Bob
83  Camaro Research Group Discussion / Originality / Re: Big Block Distributor Hold Down Clamp on: July 17, 2013, 01:18:02 PM
Ed,

Thank you very much! Very helpful indeed.

I have both the wire clamp and the stamped clamp in my stash of parts, hence my question on which one was correct.

My car is an 01D build so from the info you've provided it looks like it could be a toss up on which one to use. Now, if I go with the wire clamp version what finish would it have gotten? Would it have the overspray from when the engine was painted (assuming of course that the distributor and clamp was installed prior to the engine being paint)?

Thanks,

Bob
84  Camaro Research Group Discussion / Originality / Big Block Distributor Hold Down Clamp on: July 16, 2013, 09:06:19 PM
Which hold down clamp is correct for a '68 396/325? The wire type or the plate type?

Thanks,

Bob
85  Camaro Research Group Discussion / Originality / Re: BB Timing Chain Cover on: July 15, 2013, 03:22:25 PM
Ed,

Excellent. Thank you very much.

Some where in the previous ownership of my car the service replacement cover and bolt on timing tab was installed. Today I just scored a purchase of the 7" version with the timing tab welded on so all is well.

Thanks for providing the examples.

Bob
86  Camaro Research Group Discussion / Originality / BB Timing Chain Cover on: July 15, 2013, 08:26:21 AM
Did the timing chain cover for a '68 396/325 have the timing tab welded on the cover or did it use a two piece design (cover plus bolt-on tab)? I believe the two piece design was for replacement covers only but not 100% sure.


Thanks,

Bob
87  Camaro Research Group Discussion / Research Topics & Reports / Re: Original 67-69 Camaro driveshafts - information requested about your car on: July 09, 2013, 11:52:21 AM
John,

Yes. Needless to say, I was extremely surprised to see the pins when I pulled the driveshaft out during my restoration. I quickly began my search to try to figure out what was going on and ran across across this thread:

http://www.camaros.org/forum/index.php?topic=8333.0

Of course I can't say with 100% certainty that this is the original born-with driveshaft, but I can assure you that in my 35 years of owning this car the driveshaft has never been removed. The other thing that I found odd was that the date code (0207) on my rear axle tube is one week after the build date (01D) of the car. Again, I found this odd and from what my research has found, GM had a strike right around the time my car was built and may have resulted in some parts being delayed from their suppliers. I also found this issue on my brake booster which is date 038. Could some parts have been changed during previous ownership? Maybe, but from what I'm uncovering during my restoration there are a few more parts that seem out of sequence with the build date of the car. I'd be curious to know what others have found with cars built around this time frame.
88  Camaro Research Group Discussion / Decoding/Numbers / Re: Shock Absorber Nut on: June 19, 2013, 05:36:27 PM

Thought I would provide a quick follow-up posting to this thread with the hopes it may benefit someone else who went down the same path I did.

I ordered the superseded shock nut (p/n 3866766) mentioned earlier in the thread from the local Chevy dealer. The nut in the attached image is what I received today. It's pretty darn close to the nuts from some of the images posted from others. The thickness measures .371". It's difficult to tell but it does not appear to be zinc plated.

This is what I'm going to use which brings me a whole lot closer to what was originally used versus the nuts I picked up earlier.

Bob
89  Camaro Research Group Discussion / Decoding/Numbers / Re: Shock Absorber Nut on: June 15, 2013, 05:03:47 PM
Gary,

You're right! I was unaware that the Camaro Nationals had seperated from Carlisle.  That explains why the past couple of years I've noticed a dramatic decline in the number of Camaro's at Carlisle. I was going to take Friday off to go to Carlisle but now I may have rethink my plans.

Thanks for the info!

Bob
90  Camaro Research Group Discussion / Decoding/Numbers / Re: Shock Absorber Nut on: June 15, 2013, 11:10:34 AM
Ed,

I was referring to the GM Nationals at Carlisle next week. Always a bunch of great cars there to look at.

http://www.ifounditatcarlisle.com/ce/events/gm-nationals/

Bob
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