I just ran a carfax report on a 1985 IROC-Z and the report came back:


Year/Make/Model: 1985 CHEVROLET CAMARO
Body Style: COUPE
Engine: 5.0L V8 TPI HO OHV
Fuel: GASOLINE
Driveline: REAR WHEEL DRIVE
Manufactured in: UNITED STATES
Safety Equipment: Active (manual) belts

Standard Equipment: Power Windows Optional, Power Steering, Air Conditioning Optional, AM, Power Brakes, Tilt Wheel Optional, 5-digit Odometer


Can I tell anything by the VIN number of the vehicle and did 1985 IROC Camaros come with 5.0L V8s?? Any help is appreciated.

 

All 1985 Irocs came with 5.0 L engines. Some had tuned port injection, some had a Quadrajet.

It will have RPO code Z28 and B4Z for the Iroc package.

 

Tracy, I have the VIN number, but where can I find the RPO code?

 

In the center console glovebox.

In 1985 the exterior badges said Z28, not Iroc. Only the door stickers said Iroc. It should have factory fog lights, and Iroc rims as well as ground effects, hood louvers and 3-segment tail lights. In 1985 there was not a center mounted brake light.

 

So what would it mean if the car had IROC-Z badges on the passenger side?

Does the RPO code look similar to a VIN number?

What do you mean by 3 segment taillights?

You can already tell I'm in the learning stage right now.

 

The RPO code is totally different from the VIN. The cars RPO codes will be on a white sticker, probably located in the center console. This is the only sure way to be sure that it is an actual IROC and not a clone. As stated by TABAHR, the exterior badges will all say Z-28 and not IROC-Z. And I can confirm this as fact as a friend of mine had a new 85 IROC in high school back in the day. He removed the IROC-Z door badges and people questioned him about it being an actual IROC. Anyways, if it does have the IROC badges, maybe the previous owner just added them on so people wouldn't mistake it for anything else(?), or maybe its a clone. Check that RPO code and you can see what other options the car has.

 

Would there be any other place the RPO code might be? And where can I go to translate the code once I get it? Thanks for the info.

 

As stated below, the RPO codes are a bunch of 3 digit codes on a white sticker. Each code has a specific meaning. Basically, the cars options are summarized on it.

3 Segment tail lights have two thin black strips going through them horizontally, creating 3 vertical segments. The older non-Iroc lights had a single thicker strip creating 2 segments.

Welcome to the F-body! I've owned a few nice 3rd gens, and they are great fun. The 3rd generation was all cars between 1982 and 1992.

 

Not unless he simply installed one, right?

 

I don't think there's a big problem with counterfeit IROCs at the moment.

TPI conversion is a fairly involved process. I don't think faking an IROC for resale improvement would really motivate a person to convert a car. The posts above sum it up. Not a huge difference between an IROC and a Z28. Couple years later they merged, and the Z28 ceased production until the IROC licensing agreement expired and the Z28 resumed.

TPI is the key. That's the biggest of all the options. Enjoy the car, later

 

Sounds good. Where would I find the difference a 1985 IROC offers as opposed to a 1989? I'm refering to upgrades and options and Horsepower. Are the two cars similar enough that you can't tell the difference?

 

Later cars offered a 5.7 350 TPI with an automatic only. It's about the only significant mechanical change you'd notice from the driver's seat, and would be my first choice of all 3rd gen options.
Carburetion was discontinued in 86 or 87, then all Zs had TPI. Minor ground effects, badging, wheel, engine management, and interior changes. They gained something like 25hp in those years. Each individual car will be different speed-wise because they all have at least one mod by now, and several gear ratios were available. If you park outside, plan on T-tops leaking unless you fu$$ with em. More that do leak than don't. Good luck

 

In 1989 you could get a 5.7L. The rear spoiler had a 3rd brake light. The door bump guards were different, the rims had 2 grey lines in each spoke instead of 1 and there were a few slight differences in the center console shift trim. I'm sure there were other small differences, but nothing major.

 

yes, 87 was the last year for carbs, but then the base engine in the Z's till 89 was the TBI 305, 90-92 was TPI only in the Z's

 

Simple method of knowing the difference between a z28 and an IROCZ check the body plate codes for color, the z28's were 2 tone, IROC's were mono tone (one color) check the body plate and you'll know, here is a method of finding all your info this is for 1987 models: I hope this helps you out

Vehicle Indentification Number Example: 1G1FP21H1HN100001

Commonly refer to as the "Vin Number", this series of numbers and letters is stamped on a plate


on the top of the instrument panel visible through the windshield.

First Digit: Indentifies the country in which the vehicle was built.

1 = U.S.A.Second Digit: Identifies the Manufacturer.

G = General Motors


Third Digit: Identifies the automotive division.

1 = Chevorlet


Fourth Digit: Identifies the car line.

F = Camaro


Fifth Digit: Identifies the series.

P = Camaro (all models)


Sixth Digit: Identifies the body type.

2 = 2 Door Coupe 3 = Convertible


Seventh Digit Identifies the restraint system.

1 = Manual Belts

2 = 4 Point Harness

Eighth Digit: Identifies the engine.

S = 173 CID, V-6, 2 BC,MFI(Chevy)

F = 305 CID, V-8, MFI(Chevy)

H = 305 CID, V-8, 4 BC (Chevy)

8 = 350 CID, V-8, MFI (Chevy)

R= 427 CID, V-8, MPI (Chevy)


Ninth Digit: Identifies the check digit.


Tenth Digit: Identifies the model year.

H = 1987


Eleventh Digit: Identifies the assembly plant.

L = Van Nuys

N = Norwood


Last Six Digits: Represent the basic production numbers, 100001/up




Body Number Plate

The Body Number Plate Identification Label is located under the hood on the radiator cross


support. It includes the the model year, build date, style number, assembly plant, body number,


paint color, paint type, trim combination, and seat type.


Example: D09D1FP87N17B1111LAR9100001

H Model Year 1987

09 Build Date September

D Build Date 4th week

1 Car Division Chevrolet

FP Series Camaro Sport Coupe

87 Body Style 2-Dr. Sport Coupe

N Assembly Plant Norwood

100001 Body Number

19B Interior Trim Charcoal Cloth

26 Lower Body Color Black

26 Upper Body Color Black

W Paint Type Water

AR9 Seat Type Reclining Bucket



Option Codes

AR9 Recliner Bucket

Paint Type & Coat

BC CC Base Coat/Clear Coat


Paint Code

U8555 Lower Body Color Black L8555 Upper Body Color Black




Trim Code

19C Interior Trim (Black Cloth)




Trim Number

The Trim Number indicates the interior trim color and material.

Color Cloth Vinyl Leather Code

Black X 19B,19C

Black X 19R

Light Saddle X 62B,62C

Light Saddle X 62R

Light Saddle X 622

Dark Carmine X 72B,72C

Dark Carmine X 72R

Dark Carmine X 722

Medium Dark Gray X 82B,82C

Medium Dark Gray X 82R

Medium Dark Gray X 822

B-Standard Cloth

C-Custom Cloth

R-Standard Vinyl

2-Leather

1 Custom Race


# Deluxe



The Paint Code

The Paint Code indicates the exterior paint color. A two part paint code indicates the bottom and top colors. Vehicles using the letters L and U indicate which code represents the lower body and the upper body colors respectively. Included on this label is a four digit number indicating the exterior body color. This number has been noted along with the exterior GM code.


Color WA Number Code

Silver Met 9021 13S

Black 8555 41

White 8554 40

Bright Blue Met 8751 23

Black Sapphire Met 8743 28

Yellow Gold 8929 51

Midnight Russet Met 8757 68

Flame Red Met 8748 74

Bright Red 8774 81

Gunmetal Met 7782 84 Paint Types:

The Paint Type Code indicates what type of paint was used on the car.

L Lacquer

E Enamel

W Water



Transmissions:


The 4 speed

Transmission code is located on the machined surface on the left side of the case just below

the side cover and includes the type, year, month, day procduced and plant where assembled.




Example:7YMMYXXXXXXXX267A

7 Model Year (1987) YM Model M Transmission Type (THM 700-R4) Y Build Location (Toledo) XXXXXXXX Transmission Serial Number 267 Julian Date A* Shift Built(1st) Code CID YM 350 YP 305 YW 305 YX 173 YZ 305 YR 427 The Build Date Code

Starts with the Julian date (day of the year) on which 1982 production started. The build date code continues with the Julian date until December 31 (365). The sequence then continues until the end of the 1985 production. EXAMPLE: April 20, 1982 would translate to a build date code of 475.

Note:



In addition to the transmission production code number, all passenger cars have a portion of the vehicle identification number stamped on the transmission. The condensed vehicle identification number consists of the division identification number, model year, assembly plant designation and vehicle build sequence number.

The Rear Axle Code

Is a two letter code stamped on the front passenger side of the axle tube or on an identification tag attached to the carrier cover. It identifies that axle code ratio and if the axle is equipped with the Safe-T-Track option.

Code Ratio Year Locking



2HA 3.23 87

2HL 3.42 87

2HP 2.73 87

2HQ 3.23 87

2HR 3.42 87

2HT 2.73 87

2TF 3.73 87

2TH 3.73 87

4ET 2.77 87

4EU 3.27 87

4EW 3.45 87

4HB 3.08 87

4HD 2.73 87

4HE 2.73 87

4HF 3.08 87

4HJ 3.23 87

4HV 2.73 87

4HY 3.23 87




Regular Production Options (RPO) Description Code Six-Way Power Seat AG9 Split Folding Rear Seat Back AM9 Reclining Bucket, Driver and Passenger Side AR9 Tinted Glass, All Windows AO1 Door Locks AU3 Windows, Power A31 Power Trunk/Hatch Opener A90 Front Floor Carpet Mats B34 Rear Florr Carpet Mats B35 Engine, 5.7L, V-8, TPI B2L Camaro LT Equipment B4E IROC-Z Performance Package B4Z Deluxe Luggage Compartment TR B48 Body Side Moulding B84 Black Door Edge Guards B91 Panels, Removable Glass Roof CC1 Windshield Wiper, Intermittent CD4 Electric Rear Window Defogger C49 Air Conditioning C60 Automatic Inside Rearview Mirror DD8 DSRV Mirror Electric Mirror, LH/RH DD9 Rear Window Louvers DE1 Electric Twin Romote Sport Mirror DG7 Interior Roof Console DK6 Locking Rear Storage Cover D27 Rear Compartment Cargo Cover D42 Spoiler, Deck Lid Rear D80 Limited Slip Differential G80 Axle, Performance Ratio G92 Brake System, Power, Front and Rear Disc J65 Heater, Engine Block K05 Speed Control W/Resume K34 Engine Oil Cooler KC4 Engine, 2.8L, V-6, MFI LB8 Engine, 5.0L, V-8, TPI LB9 Engine, 5.0L, V-8, 4BC LG4 Transmission, 5-Speed Manual MM5 Transmission, Automatic w/overdrive MX0 Steering Wheel, Tilt Type N33 Aluminum Wheels PE1 Tires, P195/70R-14 S/B Radial Blackwall QDX Tires, P245/50R-16 S/B Radial B/W QDZ Tires, P205/70R-14 S/B Radial Blackwall QHX Tires, P205/70R-14 S/B Radial W/S QHY Tires, P215/65R-15 S/B Radial White Letter QYH Tires, P215/65R-15 S/B Radial Blackwall QYZ Lamp Group, Auxiliary Lighting TR9 Headlamps, Halogen TT4 Lamps, RR End Lighting and Reflector T90 Halogen Fog Lamp T96 Heavy Duty Battery UA1 Electronic Tune AM/FM Stereo Seek, Scan, clock Cassette UM6 Delco-GM/Bose Music System, Electronic UU8 Electronic Tune AM/Stereo/FM Stereo, Seek, Scan, Cassette UX1 Gauge Package w/Tachometer U21 Power Antenna U75 Emissions, California Requirement YF5 Camaro Z28 Sport Coupe Z28
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