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will v-6 speedo and tack work in v-8 car?

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Old Feb 1, 2002 | 12:17 PM
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zee28's Avatar
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From: US
Car: 86 iroc
Engine: 305
will v-6 speedo and tack work in v-8 car?

can i use a 110 speedo from a v-6 car in my iroc?and can I just swap the faces on the speedo and leave everything else?you know the two little screws.thanks
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Old Feb 1, 2002 | 01:08 PM
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
I would say the Speedo should work, the tach will NOT

As far as the faces, I have no clue.

The reason the tach will not is because the tach uses pulses from the distributor in order to determine RPM. Because a V6 has 3 pulses per every revolution, and a V8 has 4 pulses per revolution it would be off. Most aftermarket tachs will have a switch to accomidate for this.

John
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Old Feb 1, 2002 | 01:12 PM
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Car: 86 iroc
Engine: 305
thanks,guess i dont need the tach.
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