Model Name
HG
Previous model: HT
Next Model: HQ
Date of Introduction
July 1970
Model Line Up
Monaro Coupe: (6 Cylinder: 80337. V8: 80437)
Monaro GTS Coupe: (6 Cylinder: 80737. V8: 80837)
Monaro GTS 350 Coupe: (No 6 Cylinder: V8: 81837)
Prices at Time of Introduction
Monaro Coupe: $2 765
Monaro GTS Coupe: $3 323
Monaro GTS 350 Coupe: $4 174
Total Number Built
???
Engines
161 Low Compression Red 6
Option number: L21
Engine Prefix: 161L
Capacity: 2638cc 161 cubic inches (2.640 litres)
Type: Conventional, watercooled four stroke, reciprocating piston
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg single barrel downdraft type carburettor Bendix Stromberg BXUV-2
Bore and Stroke: 3.375 x 3.00 inches (85.7 x 76.2mm)
Power: 108bhp (81kw) at 4400rpm
Torque: 146lb-ft (198Nm) at 2000rpm
Compression Ratio: 8.2:1
161 High Compression Red 6
Option Number: LD1
Engine Prefix: 161H
Capacity: 2638cc 161 cubic inches (2.640 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg single barrel downdraft type carburettor, Bendix Stromberg BXUV-2
Bore and Stroke: 3.375 x 3.00 inches (85.7 x 76.2mm)
Power: 114bhp (85kw) at 4400rpm
Torque: 157lb-ft (213Nm) at 2000rpm
Compression Ratio: 9.2:1
173 Low Compression Red 6
Option number: L21
Engine Prefix: GE
Capacity: 2850cc 173 cubic inches (2.850 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg single barrel downdraft type carburettor, Bendix Stromberg BXUV-2
Bore and Stroke: 3.375 x 3.00 inches (85.7 x 76.2mm)
Power: 112bhp at 4400rpm
Torque: 160lb-ft at 2000rpm
Compression Ratio: 8.3:1
173 High Compression Red 6
Option Number: LD1
Engine Prefix: 161H
Capacity: 2638cc 161 cubic inches (2.640 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg single barrel downdraft type carburettor, Bendix Stromberg BXUV-2
Bore and Stroke: 3.375 x 3.00 inches (85.7 x 76.2mm)
Power: 114bhp (85kw) at 4400rpm
Torque: 157lb-ft (213Nm) at 2000rpm
Compression Ratio: 9.2:1
186 Engine Low Compression Red 6
Option number: L23
Engine Prefix: 186L
Capacity: 3048cc 186 cubic inches (3.048 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg single barrel downdraft type carburettor, Bendix Stromberg BXUV-2
Bore and Stroke: 3.625 x 3.00 inches (92.1 x 76.2mm)
Power: 124bhp 4400rpm
Torque: 173ft-lb at 2000rpm
Compression Ratio: 7.8:1
186 High Compression Red 6
Option number: L20
Engine Prefix: 186P
Capacity: 3048cc 186 cubic inches (3.048 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg single barrel downdraft type carburettor, Bendix Stromberg BXUV-2
Bore and Stroke: 3.625 x 3.00 inches (92.1 x 76.2mm)
Power: 126bhp (94kw) at 4200rpm
Torque: 181lb-ft (245Nm) at 1600rpm
Compression Ratio: 9.2:1
186S Red 6
Option number: L66
Engine Prefix: 186S
Capacity: 3048cc 186 cubic inches (3.048 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Configuration: Front mounted, longitudinal, inline
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Bendix-Stromberg WW twin barrel single downdraft type carburettor
Bore and Stroke: 3.625 x 3.00 inches (92.1 x 76.2mm)
Power: 145bhp (108kw) at 4600rpm
Torque: 184lb-ft (249Nm) at 2200rpm
Compression Ratio: 9.2:1
202 Low Compression Red 6
Option Number: L23
Engine prefix: GM
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
Capacity: 3.310 litres (202 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, Bendix Stromberg BXUV-2
Bore and Stroke: 92.1 x 82.6mm (3.625 x 3.25 inches)
Power: 96kw (129bhp) at 4400rpm
Torque: 258Nm (190lbs/ft) at 2000rpm
Compression Ratio: 7.8:1
202 Red 6
Option number: L20
Engine Prefix: GL
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 6
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, Bendix Stromberg BXUV-2
Bore and Stroke: 92.1 x 82.6mm (3.625 x 3.25 inches)
Power: 101kw (135bhp) at 4400rpm
Torque: 263Nm (194lbs/ft) at 2000rpm
Compression Ratio: 9.4:1
4.2 V8 Low Compression
Option Number: L33
Engine Prefix: 253L
Type: Conventional, watercooled four stroke, reciprocating piston type
Capacity: 253 Cubic inches (4.146 litres)
Number of Cylinders: Eight
Configuration: Front mounted, longitudinal, Vee configuration
Head: Pushrod and rocker actuated overhead valves with two valves per cylinder
Fuel System: Twin barrel Bendix-Stromberg WW carburettor
Bore and Stroke: 92.1 x 77.8mm (3.625 x 3.062 inches)
Power: 130kw (174bhp) at 4400rpm
Torque: 335Nm (247lbs/ft) at 2400rpm
Compression Ratio: 8.0:1
253 V8 High Compression
Option Number: L32
Engine Prefix: 253H
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 WW carburettor
Bore and Stroke: 92.1 x 77.8mm (3.625 x 3.062 inches)
Power: 138kw (185bhp) at 4400rpm
Torque: 355Nm (262lbs/ft) at 2400rpm
Compression Ratio: 9.0:1
308 V8
Option Number: L31
Engine Prefix: 308H
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 4MV
Bore and Stroke: 101.6 x 77.8mm (4.00 x 3.00 inches)
Power: 179kw (240bhp) at 4000rpm
Torque: 427Nm (315lbs/ft) at 3000rpm
Compression Ratio: 9.0:1
350 V8 (Automatic Transmission)
Engine Prefix: 350A
Type: Conventional, watercooled four stroke, reciprocating piston type
Capacity: 5.740 litres (350 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 4MV
Bore and Stroke: 101.6 x 88.39mm (4.00 x 3.48 inches)
Power: (275bhp) at 4800rpm
Torque: (365lbs/ft) at 3200rpm
Compression Ratio: 9.0:1
350 V8: (Manual Transmission)
Engine Prefix: 350M
Type: Conventional, watercooled four stroke, reciprocating piston type
Capacity: 5.740 litres (350 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 4MV
Bore and Stroke: 101.6 x 88.39mm (4.00 x 3.48 inches)
Power: 224kw (300bhp) at 4800rpm
Torque: 515Nm (380lbs/ft) at 3200rpm
Compression Ratio: 10.25:1
Transmissions
Manual
3 Speed Manual
M15
Column shift
1st: 2.48:1
2nd: 1.36:1
3rd: 1.00:1
Reverse: 2.48:1
4 Speed Manual Transmission
M20
Floor shift
1st: 3.43:1
2nd: 2.16:1
3rd: 1.37:1
4th: 1.000:1
Reverse: 3.32:1
4 Speed Manual Transmission
M21
Floor shift
1st: 2.54:1
2nd: 1.80:1
3rd: 1.44:1
4th: 1.00:1
Reverse: 2.54:1
Automatic
2 Speed ‘Powerglide’ Automatic Transmission
M35
Floor shift
1st: 1.76:1
2nd: 1.0:1
Reverse: 1.76:1
3 Speed ‘Tri-Matic’ Automatic Transmission
M40
Floor or column shift
1st: 2.40:1
2nd: 1.48:1
3rd: 1.00:1
Reverse: 1.92:1
Rear Axle
GM-H Banjo
Option Number: G92
Ratio: 2.78:1
Standard Application: 253 and 308 V8 with automatic
GM-H Banjo
Option Number: G93
Ratio: 3.08:1
Standard Application: 253 manual
GM-H Banjo
Option Number: G95
Ratio: 3.36:1
Standard Application: Six cylinder four speed and automatic
GM-H Banjo
Option Number: G91
Ratio: 3.55:1
Standard Application: Six cylinder three speed
GM-H Banjo
Option Number: G90
Ratio: 3.90:1
GM 10 bolt
Option Number: G94
Ratio: 3.08:1
GM 10 bolt
Option Number: G88
Ratio: 3.36:1
LSD Optional on GM-H Banjo units, standard with GM 10 bolts
Option Number: G80
Clutch
Diaphragm single dry plate
Chassis
Unitary construction (Monocoque)
Suspension
Front: Short and long arm independent type with rubber bushed inner pivots, coil springs, stabiliser bar and direct acting tubular telescopic shocks.
Rear: Semi-elliptic springs, three leaves on Sedan, six leaves on Station Wagons. Direct acting tubular telescopic shocks.
Optional:
Heavy duty front and rear springs, “Superlift” rear shocks available that allow adjustment of vehicle when under load
Steering
Recirculating ball type
Optional Power Assisted Steering available to all models
Brakes
Front: Hydraulic 10.0 inch (254mm) drums, 10.7 inch (271.78mm)
Optional:
Power Assisted Discs
Rear: Hydraulic 10.0 inch (254mm) drums
Electrical
12 volt, coil ignition system
Wheels
Short spoke disc type, size 14 x 5.00JJ
Optional:
6.00JJ rally wheels available fitted with either radial or D70 tyres, double sided safety rims
Tyres
Tubeless 6.95 x 14 four-ply tyres
Exterior Dimensions (Sedan)
Wheelbase: 2819mm (111.0 inches)
Total Length: 4694mm (184.8 inches)
Total Width: 1824mm (71.8 inches)
Total Height: 1412mm (55.6 inches)
Kerb Weight: 1276kg (2814lb)
Turning Circle: 11.9 metres (39ft)
Fuel Tank Capacity: 75 litres (16.5 gallons)