DATE OF INTRODUCTION:July 1970 VEHICLE TYPE:Two door coupe MODEL LINE-UP:Monaro Coupe Six cylinder, Monaro Coupe
Eight cylinder, Monaro GTS Six Cylinder, Monaro GTS Eight
cylinder, Monaro GTS 350
ENGINES (WITH SPECIFICATIONS)
161ci (low compression engine) Type:Conventional water cooled four cycle reciprocating
piston type Capacity:161 ci (2640 cc) Number of cylinders:Six Configuration:Front mounted longitudinal in-line Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:One barrel downdraught Bendix Stromberg
carburettor Bore and stroke:3.375 inches (85.7 mm) (85.7 mm) x 3.00
inches (76.2 mm) Displacement:161 ci (2640 cc) Power output (DIN):108 bhp (80.6 kW) at 4400 rpm Torque (DIN):146 lb/ft (197 Nm) at 2000 rpm Compression ratio:8.2:1
161ci (high compression engine) Type:Conventional water cooled four cycle reciprocating
piston type Capacity:161 ci (2640 cc) Number of cylinders:Six Configuration:Front mounted longitudinal in-line Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:One barrel downdraught Bendix Stromberg
carburettor Bore and stroke:3.375 inches (85.7 mm) (85.7 mm) x 3.00
inches (76.2 mm) Displacement:161 ci (2640 cc) Power output (DIN):114 bhp (85 kW) at 4400 rpm Torque (DIN):157 lb/ft (211.9 Nm) at 2000 rpm Compression ratio:9.2:1 RAC rating:27.34 HP
186 ci (3050 cc) Type:Conventional water cooled four cycle reciprocating
piston type Capacity:186 ci (3050 cc) Number of cylinders:Six Configuration:Front mounted longitudinal in-line Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:One barrel downdraught Bendix Stromberg
carburettor Bore and stroke:3.625 inches (88.8 mm) inches x 3.00
inches (76.2 mm) Displacement:186 ci (3050 cc) Power output (DIN):130 bhp (97 kW) at 4400 rpm Torque (DIN):181 lb/ft (244.3 Nm) at 2000 rpm Compression ratio:9.2:1 RAC rating:31.5 HP
186S Type:Conventional water cooled four cycle reciprocating
piston type Capacity:186 ci (3050 cc) Number of cylinders:Six Configuration:Front mounted longitudinal in-line Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system: Two barrel downdraught Bendix Stromberg
carburettor Bore and stroke:3.625 inches (88.8 mm) inches x 3.00
inches (76.2 mm) Displacement:186 ci (3050 cc) Power output (DIN):145 bhp (108.2 kW) at 4600 rpm Torque (DIN):184 lb/ft (248.4 Nm) at 2200 rpm Compression ratio:9.2:1 RAC rating:31.5 HP
253 V8 Type:Conventional water cooled four cycle reciprocating
piston type Capacity:253 ci (4149.2 cc) Number of cylinders:Eight Configuration:Front mounted longitudinal vee Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:Twin barrel Bendix Stromberg carburettor Bore and stroke:3.625 inches (88.8 mm) x 3.062 inches
(75.0 mm) Displacement:253 ci (4149.2 cc) Power output (DIN):185 bhp (138 kW) at 4400 rpm Torque (DIN):262 lb/ft (353.7 Nm) at 2400 Compression ratio:9:1 RAC rating:42.05 HP
308 ci Type:Conventional water cooled four cycle reciprocating
piston type Capacity:308 ci (5051.2 cc) Number of cylinders:Eight Configuration:Front mounted longitudinal vee Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:Four barrel Rochester Quadrajet downdraught
carburettor Bore and stroke:4.0 inches (101.6 mm) x 3.062 inches (75.0
mm) Displacement:308 ci (5051.2 cc) Power output (DIN):240 bhp (179.0 kW) at 4800 rpm Torque (DIN):315 lb/ft (425.2 Nm) at 3000 rpm Compression ratio:9.0:1 RAC rating:51.2 HP
350 ci (5740 cc) as fitted with manual transmission Type:Conventional water cooled four cycle reciprocating
piston type Capacity:350 ci (5740 cc) Number of cylinders:Eight Configuration:Front mounted longitudinal vee Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:Four barrel Rochester Quadrajet downdraught
carburettor with automatic choke Bore and stroke:4.0 inches (101.6 mm)x 3.480 inches (85.26
mm) Displacement:350 ci (5740 cc) Power output (DIN):300 bhp (223.8 kW) at 4800 rpm Torque (DIN):380 lb/ft (513 Nm) at 3200 rpm Compression ratio:10.25:1
350 ci (5740 cc) as fitted with automatic transmission Type:Conventional water cooled four cycle reciprocating
piston type Capacity:350 ci (5740 cc) Number of cylinders:Eight Configuration:Front mounted longitudinal vee Head design:Pushrod and rocker actuated overhead valve and
hydraulic valve lifters Fuel system:Four barrel Rochester Quadrajet downdraught
carburettor with automatic choke Bore and stroke:4.0 inches (101.6 mm) x 3.480 inches
(85.26 mm) Displacement:350 ci (5740 cc) Power output (DIN):275 bhp (205.1 kW) at 4800 rpm Torque (DIN):365 lb/ft (492 Nm) at 3200 rpm Compression ratio:9.0:1
ENGINE/TRANSMISSION COMBINATIONS:161 engine standard on
Monaro, 186, 186S, 253 and 308 optional. 186S standard on Monaro
GTS, 253 and 308 optional. Three speed column shift manual
standard on Monaro, Trimatic automatic optional. Four speed floor
shift manual standard on Monaro GTS, optional with floor shift
only. Four speed heavy duty manual standard on GTS 350,
Powerglide with floor shift optional
PERFORMANCE WHEN NEW
Model:Monaro GTS 350 Engine:350 ci (5740 cc) V8 Final drive:3.36:1
SUSPENSION: Front:Independent short and long arm type with rubber
bushed pivot, coil springs, concentric dampers, stabiliser bar.
Spring rates increased on GTS and V8s
Rear (with axle type):Hotchkiss rigid axle, four leaf
springs, radius rods and Salisbury limited slip diff
STEERING:Recirculating ball
BRAKES: Front:Drums are standard with six cylinder models. Power
assistance optional. Power assisted discs standard on Monaro GTS
and V8s. 10.5 inch (268 mm) discs
WHEELS:Monaro and Monaro GTS - 5.00JJx14. V8 GTS -
6.00JJx14
TYRES:Monaro - Tubeless 6.95L14 4P/R standard. GTS Nylon
Premium S 6.95S14 4P/R red orange band standard. V8 GTS - D70H14
4P/R nylon high speed red orange band standard
INSTRUMENTS/CONTROLS:Monaro - Speedo, fuel gauge, water
temperature, oil pressure and generator charge warning lights.
GTS - Speedo, tacho, fuel gauge, oil pressure, ammeter, generator
charge warning light, water temperature gauge, handbrake warning
light.
EXTERIOR DIMENSIONS:
Total length (inches/mm):184.8 inches (4527.6 mm) Total width (inches/mm):71.8 inches (1759.1 mm) Total height (inches/mm) at kerb weight:Monaro and Monaro
GTS - 54.9 inches (1345.1 mm)
V8 GTS - 55.0 inches (1347.5 mm) Wheelbase (inches/mm):111 inches (2719.5 mm) Front track (inches/mm):Monaro and six cylinder GTS -
58.12 inches (1423.9 mm)
V8 GTS - 58.38 inches (1430.3 mm) Rear track (inches/mm):Monaro and six cylinder GTS - 58.12
inches (1423.9 mm)
V8 GTS - 58.38 inches (1430.3 mm) Kerb weight (lb/kg):Monaro 161 - 2897 lbs (1315.3 kg). GTS
186S - 2947 lbs (1337.9 kg) lbs (1337.9 kg). GTS 350 - 3386 lbs
(1530 kg) Turning circle kerb to kerb (inches/mm):Monaro - 36.5 ft
(10.7 m).
GTS 350 and models fitted with 6.00JJ wheels and D70 tyres - 39.5
ft (11.6 m) Fuel tank capacity:All models except GTS 350 - 16.5
gallons (75 litres)
GTS 350 - 25 gallons (113.7 litres) Cargo capacity (litres) SAE:
PRICES AT TIME OF INTRODUCTION:Monaro (2638 cc six & 3
speed manual) - $2765, Monaro GTS (3048 cc six & 4 speed
manual) - $3323, Monaro GTS 350 (5.7 V8 & 4 speed manual) -
$4174
TOTAL NUMBER BUILT: Total HG: 155,797 Monaro coupes:6147
ENGINE NUMBERS (FOR IDENTIFICATION):Located stamped on a
pad at the front of the right hand cylinder bank. The prefixes
for the HG GTS 350 Monaro automatic is '327A' and the manual
'350M'. The engine serial number follows.
BODY/CHASSIS NUMBERS (FOR IDENTIFICATION):Located stamped
on a plate attached to the right hand side of the firewall. The
first five numbers of the 13 digits is the model number.
80337 - Monaro Coupe
80437 - Monaro Coupe
80837 - Monaro GTS Coupe
81837 - Monaro GTS 350 Coupe The next letter is the series code:G for HG Monaro
The next two digits are a letter/number combination indicating
the plant at which the vehicle was built:
H1-H4 - Brisbane
H5-H9 - Sydney
J1-J9 - Melbourne
L1-L5 - Adelaide
L6-L9 - Perth
The remaining five numbers is the vehicle serial number represent
the sequence in which the vehicle was built at that particular
plant.
OTHER IDENTIFICATION MARKS:GTS 350 - 'GTS' and 'Monaro'
badges. Headlight bezels, grille, under front and rear bumpers,
along sill panels, bonnet scoops and rear of boot lid blacked
out. Four slanted vertical louvres in lower front guards. Low
profile bonnet scoops both sides of bonnet.
