Pontiac 376ci Specs: 4.065 x 3.622 in

Pontiac 376ci specs: 4.065 x 3.622 in (103.3 x 92 mm) bore and stroke. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	376 ci
Cylinders	8
Bore	4.065"
Stroke	3.622"
Compression	10.7:1
Advertised power	415 hp
Years	2009

This engine

Engine	Displacement	Bore × Stroke	CR	HP
LS3	376 ci	4.065" × 3.622"	10.7:1	415

Factory cars with a Pontiac 376ci

• Pontiac G8: 2009, LS3, 415 hp

What varies across the family

This family is represented by a single engine in the database: 376 ci, 8 cylinders, a 4.065" × 3.622" bore and stroke.

All are oversquare — bore larger than stroke, which favours revs over low-end torque.

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 Pontiac engines