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V8 Speedo in V6

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Old Dec 4, 2009 | 07:42 PM
  #1  
Killert's Avatar
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V8 Speedo in V6

I have a 88 Firebird v6 with a electric speedo (120mph), Could I use one a V8 140mph Speedo in it?
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Old Dec 4, 2009 | 08:20 PM
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//<86TA>\\'s Avatar
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Re: V8 Speedo in V6

yup, i only believe the tachs are different. The speedos all work off a pulse signal which is not affected by yht engine size.

Only speedo difference would be if the speedo is pre86, then ints mechanical where your 88 is electric
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Old Dec 4, 2009 | 09:04 PM
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Re: V8 Speedo in V6

You will need to swap over 2 parts from your old cluster... The tach and the odometer. Other than that, the cluster just plugs in.
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Old Dec 4, 2009 | 10:29 PM
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From: Norristown PA
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Axle/Gears: 9 Bolt, 3.27:1 Diskbrakes
Re: V8 Speedo in V6

Originally Posted by Maverick H1L
You will need to swap over 2 parts from your old cluster... The tach and the odometer. Other than that, the cluster just plugs in.
Can't I just put the Speedo in to my own cluster? or is it like hardwired or something?

Theres one at the junkyard I want to get my hands on
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Old Dec 5, 2009 | 02:01 PM
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//<86TA>\\'s Avatar
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Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: V8 Speedo in V6

Originally Posted by Killert
Can't I just put the Speedo in to my own cluster? or is it like hardwired or something?

Theres one at the junkyard I want to get my hands on
you can do that, but you still should swap you odometer
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Old Dec 7, 2009 | 09:14 PM
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Re: V8 Speedo in V6

Originally Posted by //<86TA>\\
you can do that, but you still should swap you odometer
Unless you want to contact the state and get a sticker reporting the actual mileage of the car...

Besides, swapping the odometer is easy enough... Pull the needle, pull out 8 screws and pull the motor out, swap the main assembly, put the motor in, put the screws back in, and put it in the cluster. I think you may need Torx bits for this though.
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