I've been looking. I found this one for a 95-99. I think I'm gonna order a couple of them from a friend that's the manager of a Chevy dealership. MAybe I'll get a good deal. I'll try to find out about the 454 for you while I'm at it.
Something to think about. This is a cut and paste.
The Police Cluster can be identified in a few other ways besides the 130 mph sweep. The Police cluster has an identification on the printed circuit and also has a unique circuit board specific to these clusters. No other stock OBS cluster have this and to run this cluster this board requires wiring and calibration. Boosted Z-71 has accomplished this swap and he has informed me of how to do it. You can read his information below.
The cluster is a straight bolt in except in the case of the speedometer function. You'll need to use a Dakota Digital signal modifier to take the stock speed signal and modify it AFTER it went through the ECM and out on its way to the speedo. You'll also have to shield the wires really well at the signal box and all connections or you get some RF interference that causes the speedo needle to jump at times. Some have recommended splicing into the speed sensor wires at the tranny. Do not do this! You talk about messed up shift points, that will give it to you. By modifying the signal after the ECM and on its way out to the speedometer you get transmission shift functions that stay normal and the ALDL scanner data is also correct. All you need is a scan tool and keep adjusting the Dakota Digital box to match your needle to your ground speed on the Scanner. Mine is accurate to within less than 1 mph, from 0-130. The only other way to do this is change the reluctor in the tranny & GM would not sell the police package reluctor to me without trading in a similar unit.
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