Re: Hey 2x4.... 366 or 427

Posted by Andrew from KY on February 21, 2006 at 19:35:28 from (70.35.190.234):

In Reply to: Re: Hey 2x4.... 366 or 427 posted by 2x4 on February 21, 2006 at 19:23:21:

Okay I know that on the older trucks (73-88) that GM placed an build sheet on the inside of the glovebox door. It showed what is called an RPO code on the left side of the column and to the right of the code would be a description. For example my 87 Chevy pickup has one code of K34: shich means cruise control, or D45: which means stainless steel outside mirrors. I know that on the newer body style pickups (88+) the build sheet only shows the codes, and I can't remember if the sheet is located in the glovebox or not. I have an 88 Chevy also, I'll go check and see where it is first thing in the morning, they are probably in the same place for both the pickups and 2-tons. If you find that then we might be able to decode the list to find the rear end ratio.

By the way, about what was the max speed for the truck? We have a '78 C65 with the 427 and a 6.50 rear end, it's governed at 3800 rpms and it maxes out screaming around 68-70.

Replies:

• Re: Hey 2x4.... 366 or 427 2x4 23:58:40 02/21/06 (2)
  • Re: Hey 2x4.... 366 or 427 Hugh MacKay 15:10:11 02/22/06 (0)
  • Re: Hey 2x4.... 366 or 427 Andrew from KY 08:40:32 02/22/06 (0)

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