Hyundai G6DA Specs

Hyundai G6DA engine specs: 230.5 ci (3.8L), 6-cylinder, 3.7795" bore x 3.4252" stroke, 11.5:1 compression.

Dimensions

Displacement230.5 ci / 3.8 L
Bore3.7795"
Stroke3.4252"
Cylinders6
Compression ratio11.5:1
Bore/stroke ratio1.103

Construction

Block materialaluminum
Head materialaluminum
ValvetrainDOHC
Fuel typegas
Advertised HP291 hp

What these numbers mean

Bore/stroke character1.103 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves
Mean piston speed at 6,000 RPM3,425 ft/min — conservative for a street engine
Displacement per cylinder38.4 ci
Static compression11.5:1 — high enough that pump premium or better is normally required

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