Pontiac 134ci Specs: 3.386 x 3.724 in

Pontiac 134ci specs: 3.386 x 3.724 in (86 x 94.6 mm) bore and stroke. Displacement, compression and factory ratings for each, plus rod ratio and piston speed.

At a glance

Displacement	134 ci
Cylinders	4
Bore	3.386"
Stroke	3.724"
Compression	10.0:1
Advertised power	140 hp
Years	2002–2005

This engine

Engine	Displacement	Bore × Stroke	CR	HP
L61	134 ci	3.3858" × 3.7244"	10:1	140

Factory cars with a Pontiac 134ci

• Pontiac Grand Am: 2002, L61, 140 hp; 2003, L61, 140 hp; 2004, L61, 140 hp; 2005, L61, 140 hp
• Pontiac Sunfire: 2002, L61, 140 hp; 2003, L61, 140 hp; 2004, L61, 140 hp; 2005, L61, 140 hp

What varies across the family

This family is represented by a single engine in the database: 134 ci, 4 cylinders, a 3.3858" × 3.7244" 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.

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