The standard Monaro was powered by a 3.05 litre 186 six-cylinder engine teamed with a column shift three-speed manual. Other engine choices included a higher-spec 186S six and an imported 5.0 litre 307 V8, matched with four-speed console mounted manual or two-speed Powerglide auto transmission.
There were no less than 19 Monaro engine and transmission combinations, including the 161 (2.6), 186 (3.0) and 186S sixes as well as 307 (5.0) and 327 (5.4) Chevrolet V8 power.
Engine options 186 engine over 161 $53 extra V8 engine over 161 $510 extra V8 engine over 186 $462 extra
Transmission options All-synchro transmission $20
Automatic $230
Four speed synchro $90
Engines
2.64 litre (161) engine:
Capacity: 2638cc 161 cubic inches (2.640 litres)
Type: Conventional, watercooled 4 stroke, reciprocating piston type with 6 cyl
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
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
3.07 litre (186) engine:
Capacity: 3048cc 186 cubic inches (3.048 litres)
Type: Conventional, watercooled 4 stroke, reciprocating piston type with 6 cyl
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
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
3.07 litre (186s) engine:
Capacity: 3048cc 186 cubic inches (3.048 litres)
Type: Conventional, watercooled 4 stroke, reciprocating piston type with 6 cyl
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
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
5.04 litre (307) V8 engine:
Capacity: 307 cubic inches (5.035 litres)
Type: Conventional, watercooled four stroke, reciprocating piston type with 8 cylinders
Configuration: Front mounted, longitudinal, Vee configuration
Head: Pushrod and rocker actuated ohv with two valves per cylinder
Fuel System: Two barrel Rochester downdraft type carburettor
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
5.36 litre (327) V8 engine:
Capacity: 327 cubic inches (5.363 litres)
Type: Conventional, watercooled 4 stroke, reciprocating piston type with 8 cyl
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
Bore and Stroke: 4.00 x 3.25 inches (101.6 x 82.6mm)
161 standard on Monaro, not available on GTS and GTS 327.
186 optional on Monaro, not available on GTS and GTS 327.
186S optional on Monaro, standard on GTS and not available on GTS
327. 5.0 optional on both Monaro and GTS, not available on GTS 327.
327 not available on Monaro or GTS, standard on GTS 327.
Three speed manual optional on Monaro, but not available on GTS 327.
Four speed manual optional on Monaro, standard on GTS but not available on GTS 327.
Four speed heavy duty manual optional on Monaro and GTS and standard on GTS 327.
Powerglide automatic optional on Monaro and GTS but not available on GTS 327.
Engine numbers Located at right front near cylinder bank. Chev motors - Located on a pad near the front of the right hand cylinder bank. The prefixes for the HK GTS 327 Monaro is '327'. The engine serial number follows.
308 in HG
308 in HG
308 in HG
308 in HG
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