A '71 would have the part number on the back of the tach of 5657407 for LS6. You are right on the color of the lettering!
Sell it on ebay, thats the best bet. Start low, say $99 for example, (save $$ on listing fee's) and set a reserve of what you would like to get, let the buyers set the price. There's million's of people shopping ebay at any one time.
I have seen the whole dash assembly sell for 200-400 at swap meets.
You're absolutely correct with the number color thing but the highest redline available in '71 was 5500 (big blocks). There is however a place in the Carolinas that will re-silkscreen your tach to whatever redline you want - maybe that is the source of your mystery tach.
where are the numbers located the only numbers i see are on a worn sticker that says ac-made in the u.s.a.with a huge gj and also says pr1671013 i think?also at the top of the sticker real small it says6496596 i think? ,they are hard to read but there.The numbers on the circuit board say ped-1 and 8901487.thanks for the info.
The 71 Camaro SS(402) that I'm restoring has the original tach in it.It has white numbers and it yellow lines at 5500 and red lines at 6500.
I would think they used the same tach in the Chevelle as the Camaro
64 Malibu SS, 71 Camaro SS
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