Model Name
HK
Previous Model and Next Model
HR, Next model, HT
Dates of Production
July, 1968
Discontinued: May 1969
Production Figures
???
Model Range
Monaro Coupe: (80337)
Monaro GTS Coupe: (80737)
Monaro GTS 327 Coupe: (81837)
Prices at Introduction
Monaro: $2 575
Monaro GTS: $3 090
Monaro GTS 327: $3 790
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 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: 108bhp (81kw) at 4400rpm
Torque: 146 lb-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
186 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 twin barrel single downdraft type carburettor, Bendix Stromberg WW
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
307 V8
Option number: L30
Engine Prefix: 307
Capacity: 307 cubic inches (5.035 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of Cylinders: 8
Configuration: Front mounted, longitudinal, Vee configuration
Head: Cast iron, Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Two barrel Rochester downdraft type carburettor, Rochester 2-Jet 2GV
Bore and Stroke: 3.875 x 3.25 inches (98.4 x 82.6mm)
Power: 210bhp (157kw) at 4600rpm
Torque: 300lb-ft (407Nm) at 2400rpm
Compression Ratio: 8.75:1
327 V8
Option number: L34
Engine prefix: 327
Capacity: 327 cubic inches (5.363 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type
Number of cylinders: 8
Configuration: Front mounted, longitudinal, Vee configuration
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Four barrel Rochester downdraft type carburettor, Rochester Quadrajet 4MV
Bore and Stroke: 4.00 x 3.25 inches (101.6 x 82.6mm)
Power: 250bhp (186kw) at 4800rpm
Torque: 325lb-ft (441Nm) at 3200rpm
Compression Ratio: 8.75:1
Transmission
Manual
3 Speed Manual (standard)
Column shift
Synchromesh on 2nd and 3rd
1st: 2.99:1
2nd: 1.59:1
3rd: 1.00:1
Reverse: 2.99:1
3 Speed Manual Transmission
M15 L-6
Column shift
Synchromesh on all gears
1st: 3.07:1
2nd: 1.68:1
3rd: 1.00:1
Reverse: 3.59:1
3 Speed Manual Transmission
M15 (V8)
Column shift
Synchromesh on all gears
1st: 2.48:1
2nd: 1.36:1
3rd: 1.00:1
Reverse: 2.90:1
4 Speed Manual Transmission
Opel 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
Chev M21
Floor shift
1st: 2.54:1
2nd: 1.80:1
3rd: 1.44:1
4th: 1.00:1
Reverse: 2.54:1
4 Speed Manual Transmission
Chev M22
Floor shift
1st: 2.85:1
2nd: 2.02:1
3rd: 1.35:1
4th: 1.000:1
Reverse: 2.85:1
Automatic
2 Speed Powerglide Automatic
M35
Column or floor shift
1st: 1.82:1
2nd: 1.0:1
Reverse: 1.82:1
2 Speed Powerglide Automatic for 307 V8
M35
Column or floor shift
1st: 1.76:1
2nd: 1.0:1
Reverse: 1.76:1
The ‘M’ prefixes with the transmissions are the option numbers. 3 speed manual up the top was standard
Rear Axle
GM-H Banjo
Option Number: G92
Ratio: 2.78:1
Standard Application: V8 automatic
GM-H Banjo
Option Number: G93
Ratio: 3.08:1
GM-H Banjo
Option Number: G95
Ratio: 3.36:1
Standard Application: Six cylinder automatic
GM-H Banjo
Option Number: G91
Ratio: 3.55:1
Standard Application: Manual transmission
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
GM 10 bolt
Option Number: G89
Ratio: 3.55:1
GM 12 bolt diffs were available as a special order item for 327 GTS Monaro
LSD Optional
Option Number: G80
Clutch
GMH Belleville diaphragm single dry plate
Body Construction
Monocoque unibody structure
Ignition and Electrical
12 Volt. Coil and distributor with automatic centrifugal and vacuum type advance control
Exhaust
Front and Rear tail pipe. Single combined muffler and resonator assembly
Heat shield fitted between muffler and floor on 186S and V8 engines
307 V8 fitted with reverse flow type using a double skin shell aluminised muffler with a resonant chamber and incorporating an asbestos insulator
327 V8 fitted with low restriction dual exhaust using dual reverse flow resonators, a single muffler assembly with dual inlets and outlets, twin tail pipes with dual branch chrome plated tail pipe outlets
Suspension
Front: Short and long arm independent type with coil springs. Stabiliser bar. Direct acting tubular telescopic shocks
Rear: Semi-elliptic springs, five leaves on Sedan, six leaves on Station Wagons. Direct acting tubular telescopic shocks.
Optional heavy duty front and rear springs
Optional “Superlift” rear shocks available that allow adjustment of vehicle when under load
Steering
Recirculating ball type, ratio 20:1
Optional fast ratio gearing 16.7:1 available to all models, however power assistance mandatory if fitted to V8
Optional Power Assisted steering available for fast ratio
Energy absorbing steering column
Brakes
Front: Hydraulic 10.0 inch (254mm) drums, 10.7 inch (271.78mm). Disc brakes optional
Rear: Hydraulic 10.0 inch (254mm) drums
Wheels
14 x 5.00J
Tyres
Tubeless 6.95×14 four-ply low profile tyres
Double sided safety rims
Exterior Dimensions (Sedan)
Total Length: 184.8 inches (4694mm)
Total Width: 71.8 inches (1824mm)
Total Height at kerb weight: 55.6 inches (1412mm)
Wheelbase: 111.0 inches (2819mm)
Front Track: 57.12 inches (1451mm)
Rear Track: 57.12 inches (1451mm)
Turning circle 11.1m
Fuel Tank Capacity: 16.5 gallons (75.1 litres)