GMC Vortec 3700 Specs: 3.76 x 4.055 in

GMC Vortec 3700 (3.7L I5) specs: 3.76 x 4.055 in (95.5 x 103 mm) bore and stroke. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	223.9 ci
Cylinders	5
Bore	3.760"
Stroke	4.055"
Compression	10.0:1
Advertised power	242 hp

This engine

Engine	Displacement	Bore × Stroke	CR	HP
LLR	223.9 ci	3.7598" × 4.0551"	10:1	242

What varies across the family

This family is represented by a single engine in the database: 223.9 ci, 5 cylinders, a 3.7598" × 4.0551" bore and stroke.

All are undersquare — stroke larger than bore, favouring torque low in the range.

Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.

← All GMC engines