GMC High Feature V6 11.7:1 Specs

GMC High Feature V6 · 3.504" × 3.161" · 11.7:1 engine specs: 182 ci (3L), 6-cylinder, 3.5039" bore x 3.1614" stroke, 11.7:1 compression.

Dimensions

Displacement182 ci / 3 L
Bore3.5039"
Stroke3.1614"
Cylinders6
Compression ratio11.7:1
Bore/stroke ratio1.108

Construction

Block materialaluminum
Head materialaluminum
ValvetrainDOHC
Fuel typegas
Advertised HP255–264 hp

What these numbers mean

Bore/stroke character1.108 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves
Mean piston speed at 6,000 RPM3,161 ft/min — conservative for a street engine
Displacement per cylinder30.3 ci
Static compression11.7:1 — high enough that pump premium or better is normally required

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Variants sharing these dimensions (2)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

YearAdvertised HPCode
255 hpLAX
264 hpLCS

Vehicles (4)

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