Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 hp engine DIY maintenance and service manual

General Information

Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 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 9.25:1 compression. This engine was rated 90 hp (67.11 kW) at 4000 rpm and 145 lbf⋅ft (196.59 N⋅m) of torque at 2800 rpm. It was used in Chevrolet cars.

Engine Performance Rating

SAE J1995 (SAE Gross)

Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 hp engine performance rating according to SAE J1995 (SAE Gross) standard.
Parameter	Output
Power Rating	110 hp (82.03 kW) at 4400 RPM
Torque Rating	216.93 N⋅m160 lbf⋅ft160 lbf⋅ft at 2800 RPM

SAE J1349 (SAE Net)

Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 hp engine performance rating according to SAE J1349 (SAE Net) standard.
Parameter	Output
Power Rating	90 hp (67.11 kW) at 4000 RPM
Torque Rating	196.59 N⋅m145 lbf⋅ft145 lbf⋅ft at 2800 RPM

Specifications

General

Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 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	9.25:1
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) Hi-Performance 90 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) Hi-Performance 90 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) Hi-Performance 90 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) Hi-Performance 90 hp air intake specifications.
Parameter	Value
Air Intake Method	Naturally Aspirated

Fuel Injection

Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 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) Hi-Performance 90 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) Hi-Performance 90 hp valve timing diagram.

Oil Pump

Chevrolet gasoline Corvair 164 CID (2.7 L) Hi-Performance 90 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