Great forums/ 69 Z28 info

ZackB · #1 06-08-2002, 02:19 PM

First I would like to say that the info and opinions here are invaluable to the supercars from the 1967-1973 era, with everyones input and superior knowlegde of these cars, its like beign there when they were just a common sight on the street! I have a few questions for you guys just to see if maybe can help me out a little. I recently purchased a Fathom Green 69 Z/28 from a friend of my uncles, my uncle has known of this car since new and been around it lots. I am the 5th owner of this car, as the origial owner was killed in Vietnam in 71. The car is Fathom Green, houndstooth interior(black), rosewood wheel/trim, body colored front bumper, it how no wheel opening moldings or the chrome pieces on the quarter panels or chrome drip moldings. The car has 4 wheel disc brakes, I have read that this a rare option, but I do not know if it was an original option or the service option package(there is so much info on this page, without it I would be completely in the dark as to what I am asking), how would I tell the difference? The origial owners dad gave me some other original parts with the car, he purchased a crossram set-up and fiberglass hood that went with the crossram, when the car was new,these parts were never installed but the crossram set-up is in terrible shape from sitting around for so long but the hood is in good shape, and it also has factory headers on it,and a set of torque thrust wheels from 1969, but they are a solid dark color, not like the ones you see now with a polished lip. His dad is looking for the original paperwork on the car,and is sure that he still has it. The car is showing 64,000 miles. I know this is not a SUPERCAR,but any help,opion, or input from any of you would be greatly appreciated, Thanks

Jeff H · #2 06-08-2002, 07:39 PM

Zack, check the axle codes on the passenger side of the rear axle tube facing toward the front. Let us know what the code on the axle is. IT should be something like QX0328 G1. Look at the front brakes and check the calipers to see if they are the single piston or 4 piston design. The factory JL8 4 wheel disc brake option had 4 piston calipers front and rear. There should be no proportioning valve under the master cylinder as well. That's a great car you picked up. What part of the crossram setup is in bad condition? Original GM fiberglass crossram cowl hoods are very valuable today because they didn't make very many(less than 100 probably). I have the crossram setup, the hood, transistor ignition, radio delete and heater delete that I'm restoring my JL8 with. If the owner can find the paperwork you'll be in great shape.

Rat_Pack · #3 06-09-2002, 12:24 PM

Zack, sounds like you have a great find. Check out www.camaros.org, those guys at the CRG can help you a lot as well as the ones on this site. There is helpful info on how to look for the codes that Jeff is talking about plus a forum just like this one. Good luck in your research. By the way, since you are in Mooresville, there is a local Camaro club that could help you out also...................RatPack.................... .

ZackB · #4 06-09-2002, 02:06 PM

Jeff,

Thanks for you input! The crossram intake is just really dull and dirty and so are the carbs, but all the linkage is there, and a different gas pedal. Why would this set-up have a different gas pedal? The original owners dad called last night and said that he has found some pictures from 69-70 of the car, so he thinks he getting close to finding the paperwork, I am keeping my fingers crossed! His dad also said that he has a camshaft in a GM box that goes with the car that he is going to send, but he said it was rusty, he also made the comment that his son bought everything hi performance for that car that he could at that time. The front and rear both have 4-piston calipers, but have not had a chance to get under the car and look for the codes, its really dirty under there. I own a 89 Saleen SSC and a 97 Viper GTS, so this whole car restoration, finding codes and decoding stuff is all new to me, and really I do not know where to start with this car, but I do not want to restore it to where I can't drive it. One last question, can anyone tell me about these Torque Thrust wheels that are a solid dark color with no polished parts on them, they are in good shape and I would like to put them back on the car, I think that these style look really good on these cars, almost like they were made for Camaros, and once again any help or info is greatly appreciated! [img]/ubbthreads/images/icons/cool.gif[/img]

ZackB · #5 06-09-2002, 02:07 PM

Rat Pack

Thanks for your input and info, I am sure it will really help me!

Jeff H · #6 06-09-2002, 03:03 PM

Sure sounds like a genuine JL8 car. The crossram setup used the 6 cyl gas pedal with a throttle cable compared to the single 4 barrel setup which uses linkage rods to open the carb. Sounds like he has the "140" off-road cam that was designed for use with the crossram. I have that cam but it uses different valve springs so check to see if he has those as well. I don't know what you paid for the car, but another documented JL8 recently sold for around $45,500! Crossram setups sell for $5000-$7000 and those fiberglass crossram hoods sell for $2500+. We'd love to see those pictures if you can get them scanned and onto the computer. Good luck with the car.
Jeff.

Jeff H · #7 06-09-2002, 03:24 PM

Sure sounds like a genuine JL8 car. The crossram setup used the 6 cyl gas pedal with a throttle cable compared to the single 4 barrel setup which uses linkage rods to open the carb. Sounds like he has the "140" off-road cam that was designed for use with the crossram. I have that cam but it uses different valve springs so check to see if he has those as well. I don't know what you paid for the car, but another documented JL8 recently sold for around $45,500! Crossram setups sell for $5000-$7000 and those fiberglass crossram hoods sell for $2500+. Is the hood fiberglass or metal? We'd love to see those pictures if you can get them scanned and onto the computer. Good luck with the car.
Jeff.

ZackB · #8 06-09-2002, 05:16 PM

Jeff

Can you explain to me what the "140" offroad cam is?

Jeff H · #9 06-09-2002, 08:00 PM

That's the GM part # 3927140 cam which has .473" and .492" lift compared to .455" with the stock cam. It was designed for use with the crossram setup for racing purposes.
Jeff.

ZackB · #10 06-17-2002, 03:24 AM

Jeff,

Thanks for the info on the cam, are there any aftermarket cam companies that make this cam profile in a roller design, that is what I am going to put back in the engine when I rebuild it. Some guys here at work are helping me to decode the car. Good news, I got all the original paperwork on the car, and the window sticker, it has the four wheel disc brake option(JL-8) on it, but the price is faded to where I can't read it, how much did this option cost? Where would be the best place to get the intake and carbs bought back to new condition? The guy that is helping me decode the car found the numbers on the trans and he said that by the codes it is an M22, is this correct or not? We have not gotten to cleaning off the rearend to look for numbers yet, but I know it is a 4-wheel disc brake car from the window sticker, and the VIN on the window sticker matches that VIN on the car, that was the first thing I checked,and again thanks for any info,opions and help!

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.