Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Messages - william

Pages: 1 ... 136 137 [138] 139 140 ... 208
2056
Restoration / Re: Remove trim tag or not ?
« on: July 02, 2013, 02:34:44 AM »
Kind of amusing to read the responses here.

I've seen re-bodied cars and Dynacorn bodies with swapped VINs sell for six figures at major auctions. Repro tags with altered provenance are common. Someone wants to clean up the rust under a '68 tag with no build configuration info on it whatsoever and paranoia reigns.

The sky won't fall if the tag is removed.

2057
Restoration / Re: Remove trim tag or not ?
« on: July 01, 2013, 11:01:28 PM »
Push on the rivets from behind. If you're careful it may pop off with the rivets intact.

There is nothing on a '68 tag to indicate build configuration. You already have photos.

2058
Decoding/Numbers / Re: Cowl Tag Stamping Error
« on: July 01, 2013, 10:54:56 PM »
There is one other 091 example in the db along with 051 and 061.

2059
Originality / Re: 69 Z 302 pulley finishes
« on: June 29, 2013, 08:02:15 PM »
I have a book about Honda and how they transitioned from making motorcycles to cars. They interviewed a supplier that had shipped 316,000 pc of a particular part to the Ohio plant. Of those 44 were rejected. That's .0001%. Honda graded their quality "satisfactory, not outstanding."

The book was written in 1988. Probably not good enough today.


2060
Originality / Re: 69 Z 302 pulley finishes
« on: June 28, 2013, 05:45:31 PM »
Engineers do not always have the last word. Those who work in sourcing will tell you there is continual pressure to reduce costs. Generally mentioned in your goals for the year. Nothing is sacred in that endeavor. If you have to go back to engineering and have some spec changed that does not affect form, fit or function [like plating] that will save 10˘ per part so be it.

The '458' AIR pulley went from phosphate with a hard-stamp part number to painted with an ink-stamped part number. Maybe the source changed; maybe some buyer at Chevy gave the supplier a new cost target. Meet it or lose the business.

Today there are entire departments that determine what parts and tooling should cost before a supplier sees a drawing. Very tough dealing with the auto industry.

2061
General Discussion / Re: 69 Z-28 for real?
« on: June 28, 2013, 12:39:22 AM »
Looks to be the real deal to me.

2062
Restoration / Re: Y55 Battery Warranty Label/Sticker
« on: June 24, 2013, 02:26:02 AM »
I checked two original road tests: an early production 69 Z/28 in the Jan '69 Hot Rod and a later Z/28 in the August '69 Car Life. The batteries are visible in both photos and neither has that label.

2063
General Discussion / Re: 1969 Z/28 to Rallysport Z/28
« on: June 23, 2013, 05:37:09 PM »
Simply stated you would be ruining whatever remains of the cars' originality.

Unless you really know what you are doing AND have every OE part needed for the conversion it will be detectable. There is more involved than you may be aware.

2064
General Discussion / Re: Is This a Legit Z?
« on: June 17, 2013, 10:05:53 PM »
Tag looks real. Supposed to have a medium green standard interior [721] which appears to have been changed to black. 59 E is frost green with parchment vinyl roof. No one is looking for those colors.

Block appears to have been decked with a chain saw and re-stamped.

2065
Restoration / Re: 1969 Z exhaust and smog systems
« on: June 15, 2013, 05:22:26 PM »
Whatever system your car had new it wasn't very good. Worst of the bunch was probably NC8, chambered. 4 mufflers, small diameter tubing, lots of bends. On a ZL1 dyno test many years ago a stock engine with headers picked up 80 hp when the system was disconnected.

I read somewhere the '65-'69 Corvette side-mount system [chambered also] was about a 50 hp hit on a BB.

2066
Restoration / Re: 1969 Z exhaust and smog systems
« on: June 15, 2013, 04:01:26 AM »
No...

2067
Restoration / Re: 1969 Z exhaust and smog systems
« on: June 15, 2013, 12:07:14 AM »
Jerry is correct-it would be VERY difficult to duplicate a production N10 Z/28 dual exhaust system. In fact if you had a complete NOS service system it would not be the same as production.

The first consideration is when the car was built. When chambered was recalled the Z/28 was changed over to the ’68 deep-tone muffler without resonators. Around April ’69 they went to the same muffler/resonator system used on the L48. This system had the head pipes welded to the resonators and the RH tailpipe welded to the muffler.

Mid-May ’69 they changed to “bright metal” tailpipes. Just got a big surprise here from Warren Malkin, a guy that has probably seen more original stuff than all of us combined. He has now examined several OE exhaust May-June cars and the LH tail pipe is NOT of the 2-piece construction as the right. What may have happened is the source had an excess supply of the standard LH tailpipe at the change and Chevy had a choice-scrap them or make them work. What it appears they did was to polish about 1/3 of the pipe and apply chrome over it-no nickel. There is an obvious difference in the finish between the pipes. At some point the LH tail pipe did change over to the 2-piece construction.

By the way big blocks did not use the interim “deep-tone” Z/28 system. The recall states L34 and L78 cars were to use the same system as the L48, meaning resonators. The famous undercarriage road test photos of ZL1 #3 shows the single muffler/dual resonator system-if you can imagine that.

Last month I pitched in to help install a Gardner system on a ’69. Very well made, carefully packaged, quality product.

2068
General Discussion / Re: 1996 Indy Pace Car (1969 Clone)
« on: June 08, 2013, 03:03:26 PM »
For 135,000 miles waaaaay over priced even if it wasn't ugly.

Spend $4,000 more for this one with 4,000 miles. You might see most of your money again someday.

http://cgi.ebay.com/ebaymotors/2002-Chevrolet-Camaro-Z28-SS-Convertible-2-Door-5-7L-/171053867382?pt=US_Cars_Trucks&hash=item27d39ae176

2069
Restoration / Re: Drum Brake Steering Arms vs Discs
« on: June 01, 2013, 08:50:37 PM »
The P & A manual lists them separately so they are different.

There really are no 'Z/28' steering arms. Fast-ratio power steering SS cars used the same arms with the 5.75" Pitman arm. All Z/28s used them with manual or power steering. If you use them you will have to use the 5.75" Pitman PS set up. You could use standard steering disc brake stuff; doesn't have to be fast ratio.

2070
General Discussion / Re: F41(1969)
« on: May 25, 2013, 08:05:33 PM »
Doesn't compute. Even an SS350 would have had a Muncie and 12 bolt axle with multi-leaf springs. Discs were optional.

That car was way more messed with than you remember. Sounds like someone swapped a BB into a 327/4-speed chassis.

Pages: 1 ... 136 137 [138] 139 140 ... 208
anything