GMC High Feature V6 10.2:1 Specs

GMC High Feature V6 · 3.701" × 3.370" · 10.2:1 engine specs: 217 ci (3.6L), 6-cylinder, 3.7008" bore x 3.3701" stroke, 10.2:1 compression.

Dimensions

Displacement	217 ci / 3.6 L
Bore	3.7008"
Stroke	3.3701"
Cylinders	6
Compression ratio	10.2:1
Bore/stroke ratio	1.098

Construction

Block material	aluminum
Head material	aluminum
Valvetrain	DOHC
Fuel type	gas
Advertised HP	257–464 hp

What these numbers mean

Bore/stroke character	1.098 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves
Mean piston speed at 6,000 RPM	3,370 ft/min — conservative for a street engine
Displacement per cylinder	36.2 ci
Static compression	10.2:1 — in the range that usually runs on pump premium

Run the numbers for this engine

Each link opens the calculator with this engine's specs already filled in.

• Displacement calculator
• Compression ratio calculator
• Piston ring gap calculator
• Piston speed calculator
• Carburetor CFM calculator

Variants sharing these dimensions (4)

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

Year	Advertised HP	Code
—	257 hp	LY7
—	281 hp	LFW
—	420 hp	LF3
—	464 hp	LF4

Vehicles (11)

• Cadillac CTS
• Cadillac SRX
• Buick LaCrosse
• Pontiac G6
• Saturn Aura
• Cadillac CTS Vsport
• Cadillac XTS Vsport
• Cadillac ATS-V
• Chevrolet Impala (fleet)
• Buick Enclave (fleet)
• GMC Acadia (fleet)

Similar engines

• GMC LLT — 217 ci
• GMC LFX — 217 ci
• GMC High Feature V6 · 3.740" × 3.378" · 11.5:1 — 217 ci
• GMC High Feature V6 · 3.504" × 3.161" · 11.7:1 — 182 ci
• GMC L52 — 211 ci
• GMC LLR — 223.9 ci
• Buick GM High Feature V6 · 3.701" × 3.370" · 11.3:1 — 217 ci
• Buick LFX — 217 ci

← All High Feature V6 engines