How many 73 Z07's are left
07-01-2013, 08:48 AM
#3
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Zora Duntov did not produce the Z07; it was an options package. Unless someone tracked each of the 45 cars from the day they were produced, no one knows how many have survived.
Do you have documentation confirming your car is a genuine Z07?
Do you have documentation confirming your car is a genuine Z07?
07-01-2013, 01:24 PM
#4
8th Gear
Thread Starter
Z07 Documents
L-82, M-21 Close Ratio Trans, No air, Off Road Suspension/Brakes (which is the Z07 option). The Collector I bought car from allowed inspection to prove the seven leave springs w/front stabilizer, sway bar, bigger brakes (heavy duty) 2 cotter pins per caliber and several other options mentions on invoice, leather interior, map light, tilt wheel, PW, PS. Car was meticulously maintained with all receipts.
07-01-2013, 01:30 PM
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Congratulations. At the least, you know where one of them is.
07-01-2013, 01:32 PM
#6
8th Gear
Thread Starter
07-01-2013, 05:48 PM
#8
The Z07/J56 brakes are not 'bigger'. Same rotors, same basic calipers as all other C3s. The only differences are calipers are drilled to accept two pad retaining pins, an additional caliper mounting bracket and the pads have a revised rear plate to resist warping. They don't brake any better than regular C3 brake, just resist fading better.
07-01-2013, 06:26 PM
#11
off public roads .....LoL not four wheeling
SCCA events and such road course racing. Sebring, VIR type tracks
Those special brake pads are expensive I recaLL....
I have only seen 1 Z07 in person , it was a 74 L82 M21......now its been 20 years ago since I inspected that car, seems that it also had a special brake valve set up that allowed adjustment of the front /rear brake bias.
Last edited by LS4 PILOT; 07-01-2013 at 06:39 PM.
07-02-2013, 12:49 PM
#16
I have never heard of a Z07 until this thread either. Very interesting.[/QUOTE]
The option Z07 was/is pretty uncommon as it was quite pricey for the day and required other options as well , most buyers by then weren't interested in such stuff. The option ran though 1975, the last hurray for this series of offroad package.
It was many years into owning corvettes , that I ever actually read up on the Z07 myself.
The option Z07 was/is pretty uncommon as it was quite pricey for the day and required other options as well , most buyers by then weren't interested in such stuff. The option ran though 1975, the last hurray for this series of offroad package.
It was many years into owning corvettes , that I ever actually read up on the Z07 myself.
07-02-2013, 04:32 PM
#18
8th Gear
Thread Starter
07-02-2013, 04:51 PM
#19
Burning Brakes
The Z07/J56 brakes are not 'bigger'. Same rotors, same basic calipers as all other C3s. The only differences are calipers are drilled to accept two pad retaining pins, an additional caliper mounting bracket and the pads have a revised rear plate to resist warping. They don't brake any better than regular C3 brake, just resist fading better.
07-02-2013, 05:20 PM
#20
Yes you're right, the earlier editions had insulated pistons. Somewhere I recall reading that this were discontinued prior to '73.