69 Impala Speedo options - Impala Tech
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post #1 of 6 (permalink) Old 03-24-2020, 02:44 AM Thread Starter
Join Date: Sep 2019
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Question 69 Impala Speedo options

I am really curious about what speedo I have.

I have looked and looked and found that most of the speedos are 0-120 with raised lettering and a ribbed background all the way.


Then I found the special 0-140 speedo that looks like the plastic casting was left smooth and the numbers were painted on.


Well mine is like that but it goes 0-200 ?!? Only other difference is there are fewer lines in between the numbers. Also there is a factory sticker behind it with the number 6482607 crossed over and handwritten 6482613 above it. Any idea what option this is? I know that there was a 69 caprice parts car that donated a lot to this car so the speedo may have been in that originally. The 69 assembly manual calls for a cluster number 6482608 and 6482609 in the 16600 series (so a Caprice?)

Any areas where cop cars might have wanted a km/h speedo or something?
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post #2 of 6 (permalink) Old 03-24-2020, 08:29 AM
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Metric didn't appear anywhere in the US prior to 1975 when the Metric Conversion Act passed congress at the urging of Jimmy Carter a nuclear engineer.

As a former cop I have been in a lot of cop cars (Chrysler, Ford and Chevy). All of those certified speedometers were 0-140 or 0-160 (the Ford Crown Vic topped out at 89 mph, while I had a 440 powered Doge Corronet that would bury the 160 mph speedometer if I pushed it). Rather than take out student loans I worked my way through engineering college as a Deputy Sheriff, just took longer than four years to get a degree.

I know of no speedometer that goes to 200 mph. (all of the Corvette speedos I have seen stopped at 160 mph). 200 kph is more equivalent to the normal 120 mph (124.274 mph).

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post #3 of 6 (permalink) Old 03-24-2020, 09:34 AM
Join Date: Jul 2006
Location: Swedesboro, NJ
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The speedo you have is not a 200MPH unit. The cop car speedos were 140 and were in 2MPH increments so that they could pace you when stopping you for speeding. It must be from a car that came from overseas that was built by Chevrolet Holden I'm guessing. Aussie, Europe, etc. The Canadian cars were still MPH in 69/70 to my knowledge, but perhaps a Canadian member can chime in and verify this fact.

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post #4 of 6 (permalink) Old 03-24-2020, 10:04 AM
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I've seen some old muscle cars from Canada with metric speedometers but can't say 100% for sure whether an Impala/Caprice/Cop-car would have had it. Would be neat to know if that was an ex police car from Canada though. Maybe some large door decals or something. :-D

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post #5 of 6 (permalink) Old 03-24-2020, 12:36 PM
Join Date: Jul 2009
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Interesting. My Canadian built (Ste Therese plant) 1971 Pontiac still got an Imperial cluster. Didn't think metric clusters here started until Canada went SI in the mid 70s. I agree that it is likely an export KM/h cluster that was made in Canada. Maybe something that sat on a dealer or supplier shelf for a long time (hence the pen renumbering).

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post #6 of 6 (permalink) Old 03-25-2020, 12:10 AM Thread Starter
Join Date: Sep 2019
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My car was built in Atlanta GA and afaik was in Florida untill 77 when it was exported to Sweden. It had originally a 327+Powerglide but got a 350+350 combo from a 69 Caprice and possibly the 12 bolt rear end it has now. It also has the hideaway headlights and clear lenses on the front turn signals, I understand both of these were Caprice only. Looking at the partial VIN from the engine block it seems that the donor car was made in Oshawa, Ontario, and the engine block in Tonawanda. The engine is the 300hp L48, heads are 041, and the block casting number is 3932388 and has 2-bolt main caps. The crank also hasn't got damper bolt or threads for it. The crank might not be original though, the block has been bored .030 over so who knows what is original. The Q-jet probably isn't since the numbers indicate it is from 74.

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