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Desirable RPO codes

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Old 04-26-2015, 07:33 PM
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Car: 1986 Z28 Iroc
Engine: 350
Transmission: 700r4
Axle/Gears: 3.23
Desirable RPO codes

I know a few like the Z28,B4Z,FE2, but what's are ones I should look for?
Could some one decode mine please.
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Old 04-26-2015, 07:37 PM
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Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: Desirable RPO codes

You've got an LB9 with a 3.23 posi and 4 wheel discs.
Old 04-26-2015, 07:40 PM
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Car: 1987 IROC Original Owner
Engine: LB9
Transmission: M39 MM5
Axle/Gears: G80 G92 J65
Re: Desirable RPO codes

CC1 - T-Tops
GU5 - 3:23 gears
G80 - Posi
J65 - 4 Wheel Disc
Old 04-26-2015, 07:40 PM
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Car: 1986 Z28 Iroc
Engine: 350
Transmission: 700r4
Axle/Gears: 3.23
Re: Desirable RPO codes

I'm pretty sure it's a Z28/IROC the spot of sunlight is covering up the Z28 RPO code. See any other good stuff? Anyone tell what the color is from the RPOs?
It's red now with black interior.
Old 04-26-2015, 07:42 PM
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Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: Desirable RPO codes

Originally Posted by Buloushie
I'm pretty sure it's a Z28/IROC the spot of sunlight is covering up the Z28 RPO code. See any other good stuff? Anyone tell what the color is from the RPOs?
It's red now with black interior.
'85-'87 had the B4Z code for IROC-Z, which this does. I'm guessing it's an '86.

WA-L8774 is bright red.
Old 04-26-2015, 07:47 PM
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Car: 1986 Z28 Iroc
Engine: 350
Transmission: 700r4
Axle/Gears: 3.23
Re: Desirable RPO codes

Yes it is.I picked it up this week. The 305TPI is gone. A 350 of unknown orgins in it now.
A few pics of the car
Attached Thumbnails Desirable RPO codes-image.jpg  
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