1985 Camaro Restoration Information

1985 Camaro Specifications

The mid-80s were big for the Camaro, especially 1985. This marked the year that the IROC-Z was introduced.

Named after the International Race of Champions, the IROC-Z stormed onto the market as an upgrade available only on the Z28, which consisted of an upgraded suspension system, special Delco-Bilstein shocks, larger swaybars, a special steering/frame “wonder bar” brace, a lowered ride height, new off-set (front to back) 16×8-inch 5-spoke aluminum wheels, BF Goodrich “Gatorback” unidirectional tires of the 245/50/R16 variety (also used on the Corvette in a 255/50/R16 configuration), and of course, a special decal package.

Adding insult to injury, Chevy also offered the IROC-Z with three engine options: the 305ci LB9 V8, rated for 215hp; the 305ci LG4 V8, rated for 155hp; and the 305ci L69 High Output V8, rated for 190hp. Less than 2,500 IROC-Z models were made with the High Output engine.

With the more powerful LB9 V8, consumers could only have a TH700-R4 automatic transmission. However, a small handful of these models (roughly 200) were manufactured with the G92 Performance Axle Ratio option, which gave the IROC an upgraded 3.42:1 rear end gear ratio compared to the standard 3.23:1.

In addition to the regular IROC-Z, Chevy also manufactured a special IROC model to be sold in California called the RPO California IROC-Z. Essentially it was the same car as the regular IROC-Z but came only with the 305ci LB9 V8 engine and their exterior was void of exterior decals, a rear spoiler and hood louvers (the California cars had base Camaro hoods and rear decklids). Only 500 of these cars were produced, 100 in black and 400 in red.

While the IROC-Z was getting all the press, the other Camaro models got a facelift, with a revised nose section, deeper valences and a new front spoiler for the Z28 model.

1985 Camaro Ads

1985 Camaro Model Options:

Sub-Models: (all 2-door models)

• Sport Coupe
• Berlinetta
• Z28
• IROC-Z
• RPO California IROC-Z

Engine Options:

• 151ci LQ9 4-cylinder (Sport Coupe Base)
• 173ci LB8 V6 (Berlinetta Base, Sport Coupe Optional)
• 305ci LG4 V8 145hp (Carbureted; Z28 Base, Sport Coupe and Berlinetta Optional)
• 305ci L69 V8 190hp (Fuel Injected; Z28 Optional starting in April 1983)
• 305ci LB9 Tune Port Injection V8 215hp (available only with the TH700-R4 automatic transmission on IROC-Z models)

Transmission Options:

• Borg-Warner 5-speed manual
• TH700-R4 4-speed automatic with overdrive

1985 Camaro Production:

• 3,318 4-Cyl
• 78,315 V6
• 98,385 V8
• 180,018 Total

Vehicle Identification Example: 1G1FP87HXFN100001

• Fifth digit is model level: P = Sport Coupe, Z28 Sport Coupe, S = Berlinetta
• Eighth digit is engine code: 1 = 173ci V6 (LB8), 2 = 151ci 4-cyl (LQ9), F = 305ci V8 (LB9), G = 305ci V8 (L69), H = 305ci V8 (LG4)
• Tenth digit is model year: F = 1985
• Eleventh digit is N for Norwood assembly, L for Van Nuys.
• Last six digits increased one for each car built at each plant
  – Van Nuys last six digits started with 500001

Dimensions:

• Length: 187.8″
• Height: 49.8″
• Width: 72.0″
• Wheelbase: 101.0″

1985 Camaro Model Option Breakouts

Z28 Special Performance Package

Modified McPhearson Strut, Special chassis bracing. Full Instrumentation. Special front fascia with integral airdam. Ground effects rockers.

Total Production:

• 68,403

Engine:

Base engine was the LG4 305 w/ 4 barrel Quadrajet carburetor. Dual exhaust.

Transmission:

No Info

Clutch:

10.34 inches

Rear Axle:

Positraction (G80) mandatory when equipped with 4 wheel disc brakes.

Brakes:

J65 4 wheel disc brakes available.

Suspension:

• Stiffer bracing and bushing material than base Camaro.
• 58/32 N/mm Front/Rear Spring Rate (SC = 58/18, F41 = 58/18)
• 31/21 mm Front/Rear Sway bar diameter (SC = 27/12, F41 = 29/12)

Steering:

7 ply-joint vs 4 ply in base Camaro improves rag joint stiffness and offers better angular deflection. Recirculating-ball power steering with fast 12.7:1 ratio, plus limited boost to improve road feel.

Wheels & Tires:

5 spoke aluminum 15 x 7 inch. Goodyear P215/65R-15 white letter, steel belted radials

1985 Camaro Engine Codes & Specs

Available Engine Specifications

Note

• TBI = throttle-body injection
• TPI = tuned-port injection
• MFI = multi-port fuel injection

4-Cylinder Engine Codes

6-Cylinder Engine Codes

8-Cylinder Engine Codes

Note
CAD, CDH, CDJ and CFA used in all fifty states
AAM and AAP were used in all fifty states plus Canada.

1985 Camaro Transmission Codes

Warner 5-Speed Manual Codes

Turbo Hydramatic 700-R4 Codes

1985 Camaro Manual Transmission Ratios

1985 Camaro 700-R4 Automatic Transmission Ratios

Axle Ratio Key

• S = Standard Ratio
• P = Performance Ratio

1985 Camaro Rear Axle Codes

1985 Camaro Factory Options

Regular Production Option (RPO)

Note
Option prices are retail for base model. Prices could be reduced or option could be had at no charge if it was included as standard equipment on the Z28, IROC, or Berlinetta model.

1985 Camaro Paint Codes

Exterior Paint Codes

Interior Trim Codes

* Codes 19D and 19E (black conteur) used gray cloth in seats.

Abbreviations: Bk = Black, Bc = Berlinetta Coupe, C = Copper, cc = Custom Cloth, ccc = Conteur Custom Cloth, csc = Conteur Standard Cloth, cv = Custom Vinyl, G = Gray, R = Red, S = Saddle, sc = Standard Cloth, sv = Standard Vinyl, Spc = Sports Coupe, Zc = Z28 Sport Coupe, Zci = IROC Z28 Sport Coupe

Disclaimer
The numbers in this have been compiled from many sources to make these pages as correct as possible. There is no guarantee that the numbers are complete or accurate, therefore, we cannot accept any liability or responsibility for damages incurred from the use of this information.