Question: C2 Build Sheets and Tire Options

[hokie04]

I have looked on many web sites and am getting conflicting information on the following:
1) I read that Chevrolet did not put build sheets on the gas tanks of Corvettes until 1967 is this correct. If so what did they do on the earlier years models?
2) For the 1964 year various sites show the P91 tire option as Black Wall Tire (Nylon) and the P92 as Black Wall (Rayon) no White Wall tires offered but other sites show the P91 option as Black Wall and P92 as White Wall. Does anyone know the whether 1963 and 1964 years offered white wall tires? Is there a definitive site to use?

 

[JohnZ]

1. There were no tank stickers applied until 1967; nothing was used prior to that.

2. In '63-'64, P91 was a heavy-duty (performance) nylon cord blackwall tire option; 412 were sold in '63, and 372 in '64. P92 was the ordinary whitewall tire option; 19,383 in '63, 19,977 in '64.

The NCRS '53-'67 Pocket Spec Guide has all the detail info you'll ever need.

 

[hokie04]

Thanks for the info I will purchase one of the books. I purchased the 63/64 shop manuals you recommended. They are much better than the generic manual I had. Are their any other books out there you would recommend on diagnosing C2 problems. For example I have a heater fan that only works on low speed. I have found nothing that even mentions it. I feel like when I get around to working on it I know how to proceed but would like something other than the wiring schematic. Maybe the shop mechanics just ask each other like we do on this forum. Anyway if you know of a good book let me know.

 

[JohnZ]

Power enters the heater blower switch in a brown wire, and the switch directs it to the heater resistor on the firewall side of the inside heater case, where it's directed back to the switch, and from there to the blower through the black/orange wire. Either the switch contacts are dirty or one of the coils in the heater resistor has failed. You'll have to use the wiring diagram and a test light or voltmeter to dope it out from there.

 

[67HEAVEN]

We all need a JohnZ standing in our shop, from time to time.