Buick 122ci Specs: 3.386 x 3.386 in

Buick 122ci specs: 3.386 x 3.386 in (86 x 86 mm) bore and stroke, shared by all 2 versions. Displacement, compression and factory ratings, plus rod ratio.

At a glance

Displacement	122 ci
Cylinders	4
Bore	3.386"
Stroke	3.386"
Advertised power	220–270 hp
Years	2011–2020

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
LHU	122 ci	3.3858" × 3.3858"	—	220–270
LTG	122 ci	3.3858" × 3.3858"	—	250–259

Factory cars with a Buick 122ci

• Buick Regal: 2011, LHU, 220 hp; 2012, LHU, 220 hp; 2012, LHU, 270 hp; 2013, LHU, 220 hp; 2013, LHU, 270 hp; 2014, LTG, 259 hp; 2015, LTG, 259 hp; 2016, LTG, 259 hp; 2017, LTG, 259 hp; 2018, LTG, 250 hp; 2019, LTG, 250 hp; 2020, LTG, 250 hp

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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