HZ Monaro Specifications

Previous Model: HX

Next model: WB

Date of Introduction

October 5, 1977

Discontinued: April 1980

In production for 38 months

Model Line Up

Monaro GTS Sedan

Prices at Time of Introduction

GTS Sedan: $8 445

Engines

2850 Low Compression Red 6

Option Number: L21

Engine Prefix: QE (ZE from 01/09/1978)

Type: Conventional, watercooled four stroke, reciprocating piston type

Capacity: 2.834 litres (173 cubic inches)

Number of Cylinders: Six

Configuration: Front mounted, longitudinal, inline

Head Design: Pushrod and rocker actuated overhead valves with two valves per cylinder

Fuel System: Bendix-Stromberg single barrel downdraft type carburettor, BX

Bore and Stroke: 88.9 x 76.2mm (3.5 x 3.0 inches)

Power: 75kw (100bhp) at 4200rpm (Manual)

Torque: 210Nm (155lbs/ft) at 2000rpm (Manual)

Power: 80kw (108bhp) at 4600rpm (Automatic)

Torque: 205Nm (151lbs/ft) at 2100rpm (Automatic)

Compression Ratio: 8.3:1

3300 Low Compression Red 6

Option Number: L23

Engine Prefix: QM (ZM from 01/09/1978)

Type: Conventional, watercooled four stroke, reciprocating piston type

Capacity: 3.310 litres (202 cubic inches)

Number of Cylinders: Six

Configuration: Front mounted, longitudinal, inline

Head: Pushrod and rocker actuated overhead valves with two valves per cylinder

Fuel System: Bendix-Stromberg twin barrel single downdraft type carburettor, BX

Bore and Stroke: 92.1 x 82.6mm (3.625 x 3.25 inches)

Power: 76kw (102bhp) at 4000rpm

Torque: 245Nm (181lbs/ft) at 1200rpm

Compression Ratio: 7.5:1

3300 High Compression Red 6

Option Number: L20

Engine Prefix: QL (ZL from 01/09/1978)

Type: Conventional, watercooled four stroke, reciprocating piston type

Capacity: 3.310 litres (202 cubic inches)

Number of Cylinders: Six

Configuration: Front mounted, longitudinal, inline

Head: Pushrod and rocker actuated overhead valves with two valves per cylinder

Fuel System: Bendix-Stromberg twin barrel single downdraft type carburettor, BX

Bore and Stroke: 92.1 x 82.6mm (3.625 x 3.25 inches)

Power: 81kw (109bhp) at 3900rpm (Manual)

Torque: 251Nm (185lbs/ft) at 1400rpm (Manual)

Power: 88kw (118bhp) at 4000rpm (Automatic)

Torque: 251Nm (185lbs/ft) at 2100rpm (Automatic)

Compression Ratio: 9.2:1

4.2 V8

Option Number: L32

Engine Prefix: QR (ZR from 01/09/1978)

Type: Conventional, watercooled four stroke, reciprocating piston type

Capacity: 4.149 litres (253 cubic inches)

Number of Cylinders: Eight

Configuration: Front mounted, longitudinal, Vee configuration

Head Design: Pushrod and rocker actuated overhead valves with two valves per cylinder

Fuel System: Twin barrel Bendix-Stromberg carburettor, WW

Bore and Stroke: 92.1 x 77.8mm (3.625 x 3.062 inches)

Power: 120kw (161bhp) at 4550rpm

Torque: 325Nm (240lbs/ft) at 2600rpm

Compression Ratio: 9.4:1

5.0 V8

Option Number: L31

Engine Prefix: QT (ZT from 01/09/1978)

Type: Conventional, watercooled four stroke, reciprocating piston type

Capacity: 5.035 litres (308 cubic inches)

Number of cylinders: Eight

Configuration: Front mounted, longitudinal, Vee configuration

Head Design: Pushrod and rocker actuated overhead valves with two valves per cylinder

Fuel System: Four barrel Rochester Quadrajet type carburettor, 4MC

Bore and Stroke: 101.6 x 77.8mm (4.00 x 3.00 inches)

Power: 161kw (216bhp) at 4800rpm

Torque: 400Nm (295lbs/ft) at 3100rpm

Compression Ratio: 9.4:1

Transmissions

Manual

3 Speed Manual Transmission

6 Cyl and 4.2 V8

Option number: M15

Location: Column Shift

1st: 3.07:1

2nd: 1.68:1

3rd: 1.00:1

Reverse: 3.59:1

4 Speed Manual Transmission

6 Cyl and 4.2 V8

Option Number: M20

Location: Floor shift

1st: 3.05:1

2nd: 2.19:1

3rd: 1.51:1

4th: 1.00:1

Reverse: 3.05:1

4 Speed Manual Transmission

3.3

Option Number: M22

Location: Floor shift

1st: 3.74:1

2nd: 2.68:1

3rd: 1.68:1

4th: 1.00:1

Reverse: 3.72:1

4 Speed Manual Transmission

4.2 V8

Option Number: M21

Location: Floor shift

1st: 2.54:1

2nd: 1.83:1

3rd: 1.38:1

4th: 1.00:1

Reverse: 2.54:1

Automatic

3 Speed Tri-Matic Automatic Transmission

Option Number: M40

Location: Floor or Column shift

1st: 2.31:1

2nd: 1.46:1

3rd: 1.00:1

Reverse: 1.85:1

3 Speed Turbo-Hydramatic 400 Automatic

Option Number: M41

Location: Floor or Column shift

1st: 2.48:1

2nd: 1.48:1

3rd: 1.00:1

Reverse: 2.08:1

Rear Axle

GM-H Large Salisbury

Option Number: GU7

Ratio: 2.78:1

GM-H Banjo or Large Salisbury

Option Number: GU4

Ratio: 3.08:1

GM-H Banjo or Large Salisbury

Option Number: GV4

Ratio: 3.36:1

GM-H Banjo or Large Salisbury

Option Number: GV7

Ratio: 3.55:1

GM-H Banjo

Option Number: GU8

Ratio: 3.90:1

GM-H Large Salisbury

Option Number: GM9

Ratio: 4.44:1

LSD optional

Option Number: G80

Clutch

Diaphragm single dry plate

Chassis

Unitary construction (Monocoque)

Suspension

Radial Tuned Suspension (RTS)

Front: Independent SLA type, coil springs, stabiliser bar and direct acting tubular telescopic shocks.

Rear: Live axle, four link system with coil springs and direct acting shocks, decoupled stabliser bar

Steering

Recirculating ball

Optional: power assisted variable ratio with hydraulic pump

Brakes

Front: Hydraulic 10.9inch (276mm) power assisted ventilated discs standard

Rear: Hydraulic 10.0 inch (254mm) drums on all models excluding GTS

Optional:

11.5 inch (254mm) rear discs

Electrical

12 volt, coil and distributor ignition

Exhaust

Single exhaust pipe six cylinder, single or optional Dual exhaust V8

Wheels

6.00JJ x 14

Tyres

ER78S14 Radial

Exterior Dimensions (Sedan)

Wheelbase: 2819mm (111.0 inches)

Total Length: 4844mm (190.7 inches)

Total Width: 1892mm (74.5 inches)

Total Height: 1399mm (55.1 inches)

Kerb Weight: 1342kg (2960lb)

Turning Circle: Sedan: 12.1 metres (39.7ft);Wagon, Statesman: 12.3 metres (40.5ft) Fuel Tank Capacity:75 litres (16.5 gallons)

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