Chevrolet 217ci Engine Specs

Bore, stroke, displacement and compression for all 4 Chevrolet 217ci engines, compared side by side. Plus rod ratio and head specs where published.

At a glance

Displacement	217 ci
Cylinders	6
Bore	3.701"
Stroke	3.370"
Advertised power	245–335 hp
Years	2010–2024

Engines in this family

Engine	Displacement	Bore × Stroke	CR	HP
LLT	217 ci	3.7008" × 3.3701"	—	304–312
LFX	217 ci	3.7008" × 3.3701"	—	300–323
LGX	217 ci	—	—	335
Chevrolet 217ci (2015–2016)	217 ci	—	—	245

Factory cars with a Chevrolet 217ci

• Chevrolet Camaro: 2010, LLT, 304 hp; 2011, LLT, 312 hp; 2012, LFX, 323 hp; 2013, LFX, 323 hp; 2014, LFX, 323 hp; 2015, LFX, 323 hp; 2016, LGX, 335 hp; 2017, LGX, 335 hp; 2018, LGX, 335 hp; 2019, LGX, 335 hp; 2020, LGX, 335 hp; 2021, LGX, 335 hp; 2022, LGX, 335 hp; 2023, LGX, 335 hp; 2024, LGX, 335 hp
• Chevrolet Caprice: 2012, LFX; 2013, LFX, 301 hp; 2014, LFX, 301 hp; 2015, LFX, 301 hp; 2016, LFX, 301 hp; 2017, LFX, 301 hp
• Chevrolet Impala: 2012, LFX, 300 hp; 2013, LFX, 300 hp; 2014, LFX, 300 hp; 2014, LFX, 305 hp; 2015, 245 hp; 2015, LFX, 300 hp; 2015, LFX, 305 hp; 2016; 2016, LFX, 300 hp; 2016, LFX, 305 hp; 2017, LFX, 305 hp; 2018, LFX, 305 hp; 2019, LFX, 305 hp; 2020, LFX, 305 hp
• Buick Regal: 2018, LGX, 310 hp; 2019, LGX, 310 hp; 2020, LGX, 310 hp

What varies across the family

2 of 4 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.

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