GMC L3B Specs

GMC L3B engine specs: 166 ci (2.7L), 4-cylinder, 3.6614" bore x 4.0157" stroke, 10:1 compression.

Dimensions

Displacement	166 ci / 2.7 L
Bore	3.6614"
Stroke	4.0157"
Cylinders	4
Compression ratio	10:1
Bore/stroke ratio	0.912

Construction

Block material	aluminum
Head material	aluminum
Valvetrain	DOHC
Fuel type	gas
Advertised HP	310 hp

What these numbers mean

Bore/stroke character	0.912 — undersquare — stroke exceeds bore, which favours low-end torque
Mean piston speed at 6,000 RPM	4,016 ft/min — in the range typical of performance street engines
Displacement per cylinder	41.5 ci
Static compression	10:1 — 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

Vehicles (4)

• GMC Sierra 1500
• Chevrolet Silverado 1500
• GMC Canyon
• Chevrolet Colorado

Similar engines

• GMC LCV — 169 ci
• GMC LK5 — 169 ci
• GMC LLV — 177 ci
• GMC 3.0L Duramax I6 Diesel · 3.307" × 3.543" · 15:1 — 182 ci
• GMC High Feature V6 · 3.504" × 3.161" · 11.7:1 — 182 ci
• GMC Ecotec I4 · 3.465" × 3.858" · 10.4:1 — 145 ci
• Lexus 1AR-FE — 165 ci
• Plymouth EGB — 167 ci

← All 2.7L Turbo I4 engines