Subaru 36 Dohc Specs

Subaru 36 Dohc engine specs: 221.5 ci (3.63L), 6-cylinder, 3.622" bore x 3.5827" stroke, 10.5:1 compression.

Dimensions

Displacement221.5 ci / 3.63 L
Bore3.622"
Stroke3.5827"
Cylinders6
Compression ratio10.5:1
Bore/stroke ratio1.011

Construction

Block materialaluminum
Head materialaluminum
ValvetrainDOHC
Fuel typegas
Advertised HP256 hp

What these numbers mean

Bore/stroke character1.011 — square — bore and stroke are within 5%, a balanced compromise
Mean piston speed at 6,000 RPM3,583 ft/min — in the range typical of performance street engines
Displacement per cylinder36.9 ci
Static compression10.5:1 — in the range that usually runs on pump premium

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