160mph speedo
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Junior Member
Joined: Oct 2007
Posts: 51
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From: Dayton, Ohio
Car: 1987 IROC Z
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.27
160mph speedo
I was curiuos I have a 1987 irco z28 with a 5.7, It has a 160 mph speedo. I have never seen one in any other iroc. Is this something to be proud of??????
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 160mph speedo
Certainly wasn't stock. Did a previous owner put overlays in? Pics?
JamesC
JamesC
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Joined: Oct 2007
Posts: 51
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From: Dayton, Ohio
Car: 1987 IROC Z
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.27
Re: 160mph speedo
It was stock with s gm sticker over the back of the unit its self, this was a candian iroc. and it doesn't have an overlay on it. no pics get some later. I have researched as much about this as I could have.
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Thread Starter
Junior Member
Joined: Oct 2007
Posts: 51
Likes: 0
From: Dayton, Ohio
Car: 1987 IROC Z
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.27
Re: 160mph speedo
this a 260 k/ph speedo , Like I thought no on believes it is real, but I have not found any evidence to tell me it is authentic or not. so I will cherish what I have.
Supreme Member
Joined: Oct 2006
Posts: 1,974
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Car: 91 RS
Engine: 350 vortec
Transmission: T-5
Axle/Gears: not the best not the worst
Re: 160mph speedo
so it is a canadian car with the 260k/ph speedo... that is 100% to be expected... i thought you were talking about a 160 (MPH) speedometer
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Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 160mph speedo
https://www.thirdgen.org/forums/canadian-region/
JamesC
Supreme Member
Joined: Sep 2005
Posts: 1,951
Likes: 13
From: Ottawa, ONT
Car: 1987 Firebird
Engine: 355
Transmission: T56
Re: 160mph speedo
Would love to see any pix you have. I have stripped a few of these cars, never heard or seen anything like it. Definately start with the history section, if this thing was put out from the factory, someone on this board knows abbout it.
Thread Starter
Junior Member
Joined: Oct 2007
Posts: 51
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From: Dayton, Ohio
Car: 1987 IROC Z
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.27
Re: 160mph speedo
The speedo is a 160 mph white letter on outside and lite blue 260 k/ph on inner. the car was built in norwood but has a canadian sticker in the dirviers door.form thier dept of transportation. did a background check on the car and it was never owned in canada, just one onwer besides me in the u.s.
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Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 160mph speedo
Interesting. Note the contents of the mag offered for sale here:
http://cgi.ebay.com/JUN-1986-SUPER-C...QQcmdZViewItem
JamesC
http://cgi.ebay.com/JUN-1986-SUPER-C...QQcmdZViewItem
JamesC
Thread Starter
Junior Member
Joined: Oct 2007
Posts: 51
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From: Dayton, Ohio
Car: 1987 IROC Z
Engine: 5.7
Transmission: 700r4
Axle/Gears: 3.27
Re: 160mph speedo
this speedo is as factory as it gets. I bought the car in 1991 off of a mother that purchased brand new after her divorce in 1997. and she was not a car freak she thought it was cute exact words. I have doubt it was stock also. but there is no way she did anything to it. like I said she was car savy at all. She drove it from dayton ohio to cincinnati ohio every other day . when I bought it it had barely 17,000 miles on it. Only thing that was wrong was where she had drivin over a parking curb and screwed up the pass side ground effect. This is A 1987 5.7 Iroc with t tops. has anyone eveer seen a 1987 5.7 liter with t tops I had heard that this was a special order car you could only get from canada in 87. you had to wait till 88 to get the 5.7 with t tops
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Member

Joined: Feb 2005
Posts: 367
Likes: 5
From: Southern California
Car: 1983 Daytona 500 Pace Car
Engine: CFI - 305
Transmission: Automatic-700R4
Re: 160mph speedo
I bought mine from Corvette Clinic as described in the e-bay add above in 1983 for my DT500. Other speedo shops still do the conversions. 1983 Trans Am not Camaro.
Last edited by simo; Oct 23, 2007 at 03:19 PM. Reason: clarification
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Re: 160mph speedo
Doesnt really matter if it looks stock, or if the original owner isnt car savvy or doesnt care, all kinds of things happen during the life of a car. The dealer could have swapped it out when they got it in.\
Definitely post a picture, probably looks like the one in the article and others that have been posted on the history board here... kinda like this one
https://www.thirdgen.org/forums/atta...eedo-dash1.jpg
Last edited by madmax; Oct 23, 2007 at 05:07 PM.
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Joined: Sep 2007
Posts: 2,179
Likes: 1
From: Port Orchard,WA
Car: 89 Camaro RS
Engine: 355 SD TPI
Transmission: WCT5
Axle/Gears: 3.08 Posi
Re: 160mph speedo
well id just say be happy with what ya got, mines still the 85mph one and it drives me crazy lol. The question is can the car even do 160? is there not a governer on it?
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
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