Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp engine DIY maintenance and service manual

General Information

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp is an 164 in³ (2.69 L) internal combustion reciprocating Flat 6 engine. It has bore/stroke ratio of 3.437 in × 2.94 in (8.73 cm × 7.47 cm), and uses 8.25:1 compression. This engine was rated 78 hp (58.16 kW) at 3600 rpm and 140 lbf⋅ft (189.81 N⋅m) of torque at 2400 rpm. It was used in Chevrolet cars.

Engine Performance Rating

SAE J1349 (SAE Net)

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp engine performance rating according to SAE J1349 (SAE Net) standard.
Parameter	Output
Power Rating	78 hp (58.16 kW) at 3600 RPM
Torque Rating	189.81 N⋅m140 lbf⋅ft140 lbf⋅ft at 2400 RPM

SAE J1995 (SAE Gross)

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp engine performance rating according to SAE J1995 (SAE Gross) standard.
Parameter	Output
Power Rating	95 hp (70.84 kW) at 3600 RPM
Torque Rating	208.8 N⋅m154 lbf⋅ft154 lbf⋅ft at 2400 RPM

Specifications

General

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp engine general specifications.
Parameter	Value
Type	Internal Combustion Reciprocating
Fuel Type	Gasoline
Cylinder Configuration	Flat 6
Engine Displacement	2.69 L164 in³164 in³
Bore	8.73 cm3.437 in3.437 in
Stroke	7.47 cm2.94 in2.94 in
Compression Ratio	8.25:1
Firing Order	1-4-5-6-3-6
Curb Weight	143.34 kg316 lb316 lb
Curb Idle Speed	500 RPMs

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Block, crankshaft and pistons

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp engine block, crankshaft and pistons specifications.
Parameter	Value
Block Material	Cast Aluminum Alloy
Crankshaft Material	Drop-forged steel
Piston Material	Cast alloy aluminum, slipper-skirt type, with steel struts; flat head; cam ground skirts; 3 ring grooves above piston pin
Piston Pin Material	Tubular, hardened chrome-alloy steel
Connecting Rod Material	Drop-forged steel

Spark Plugs and Wires

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp spark plugs and wires specifications.
Parameter	Value
Spark Plugs	AC Delco 46-FF
Spark Plug Size	0.55 in0.55 in14 mm
Spark Plug Gap	889 μm0.035 in0.035 in

Engine head and valvetrain

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp engine head and valvetrain specifications.
Parameter	Value
Head Material	Cast aluminum alloy
Valvetrain Type	OHV
Valves per Cylinder	2
Camshaft Material	Cast-alloy iron; driven by helical gear from crankshaft

Air Intake

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp air intake specifications.
Parameter	Value
Air Intake Method	Naturally Aspirated

Fuel Injection

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp fuel injection specifications.
Parameter	Value
Injection Type	Carburetor
Injection Info	2 (one for each cylinder bank) single-barrel downdraft Rochester with automatic choke control

Valve Timings

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp valve timings.
Parameter	Value
Intake Opens	44° B.T.D.C.
Intake Closes	88° A.B.D.C.
Intake Duration	312°
Exhaust Opens	78° B.B.D.C.
Exhaust Closes	54° A.T.D.C.
Exhaust Duration	312°
Valves Overlap	264°
Ignition Timing	4° B.T.C.

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp valve timing diagram.

Oil Pump

Chevrolet gasoline Corvair 164 CID (2.7 L) 78 hp oil pump specifications.
Parameter	Value
Oil Pump	Spur-gear type driven by distributor shaft
Oil Pump Pressure	2.72 atm.40 Psi40 Psi at 2000 RPM
Oil Pump Capacity	34.06 lpm7.49 UK gpm9 US gpm at 4000 RPM