Honda F engine

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Honda F engine
Overview
Manufacturer	Honda
Layout
Configuration	Naturally aspirated Inline-4
Displacement	1.8–2.3 L (1,849–2,254 cc)
Cylinder bore	85 mm (3.35 in) 86 mm (3.39 in) 87 mm (3.43 in)
Piston stroke	81.5 mm (3.21 in) 84 mm (3.31 in) 88 mm (3.46 in) 90.7 mm (3.57 in) 95 mm (3.74 in) 97 mm (3.82 in)
Cylinder block material	Cast iron, Aluminum
Cylinder head material	Aluminum/magnesium
Valvetrain	SOHC, DOHC 4 valves x cyl. with VTEC (on some versions)
Compression ratio	8.8:1-11.7:1
RPM range
Max. engine speed	9,200
Combustion
Fuel system	Carburetor PGM-FI Throttle-body fuel injection Sequential MPFI
Fuel type	Gasoline
Cooling system	Water-cooled
Output
Power output	105–240 PS (77–177 kW; 104–237 bhp)
Torque output	143–220 N⋅m (105–162 lb⋅ft)

The Honda F-Series engine was considered Honda's "big block" SOHC inline four, though lower production DOHC versions of the F-series were built. It features a solid iron or aluminum open deck cast iron sleeved block and aluminum/magnesium cylinder head.