Home › Engines › BMW › BMW 268ci
BMW 268ci Engine Specs
Bore, stroke, displacement and compression for all 12 BMW 268ci engines, compared side by side. Plus rod ratio and head specs where published.
At a glance
Displacement 268 ci Cylinders 8 Bore 3.504–3.622" Stroke 3.256–3.476" Compression 9.3–10.5:1 Advertised power 282–717 hp Years 1996–2026
Engines in this family
Engine Displacement Bore × Stroke CR HP M62TUB44 268 ci 3.622" × 3.2559" — 282–290 M62B44 268 ci 3.622" × 3.2559" — 282–290 N62B44 268 ci 3.622" × 3.2559" 10.5:1 315–325 N63B44 268 ci 3.5039" × 3.4764" — 400–523 S63B44TU 268 ci 3.5039" × 3.4764" 10:1 560 N63B44TU 268 ci 3.5039" × 3.4764" 10:1 445 S63B44T4 268 ci 3.5039" × 3.4764" 10:1 600–617 S68B44 268 ci 3.5039" × 3.4764" 10.5:1 617–717 S63B44T 268 ci 3.5039" × 3.4764" 10:1 560 N63 268 ci 3.5039" × 3.4764" 10:1 540–600 S63B44 268 ci 3.5039" × 3.4764" 9.3:1 555 S63B44T2 268 ci 3.5039" × 3.4764" 10:1 567
Factory cars with a BMW 268ci
BMW 7 Series : 1996, 282 hp ; 1997, 282 hp ; 1998, 282 hp ; 1999, 282 hp ; 2000, 282 hp ; 2001, 282 hp ; 2002, 325 hp ; 2003, 325 hp ; 2004, 325 hp ; 2005, 325 hp ; 2007 ; 2008 ; 2009 ; 2010 ; 2011 ; 2011, N63 ; 2012 ; 2012, N63 ; 2013 ; 2013, N63, 540 hp ; 2014 ; 2014, N63, 540 hp ; 2015 ; 2015, N63, 540 hp ; 2016 ; 2017 ; 2017, N63, 600 hp ; 2018 ; 2018, N63, 600 hp ; 2019 ; 2019, N63, 600 hp ; 2020, 523 hp ; 2020, N63, 600 hp ; 2021, 523 hp ; 2021, N63, 600 hp ; 2022, 523 hp ; 2022, N63, 600 hp ; 2023 ; 2024 ; 2025 ; 2026 BMW 5 Series : 1997, 282 hp ; 1998, 282 hp ; 1999, 282 hp ; 2000, 282 hp ; 2001 ; 2002, 290 hp ; 2003, 290 hp ; 2004 ; 2005 ; 2011, 400 hp ; 2012, 400 hp ; 2013, 400 hp ; 2013, 560 hp ; 2014, 445 hp ; 2014, 560 hp ; 2015, 445 hp ; 2015, 560 hp ; 2016, 445 hp ; 2016, 560 hp ; 2018, 456 hp ; 2018, 600 hp ; 2019, 456 hp ; 2019, 600 hp ; 2019, 617 hp ; 2020, 523 hp ; 2020, 600 hp ; 2020, 617 hp ; 2021, 523 hp ; 2021, 600 hp ; 2021, 617 hp ; 2022 ; 2022, 523 hp ; 2022, 600 hp ; 2022, 617 hp ; 2023, 523 hp ; 2023, 600 hp ; 2023, 617 hp ; 2025, 717 hp ; 2026, 717 hp BMW X5 : 2000, 282 hp ; 2001, 282 hp ; 2002, 290 hp ; 2003, 290 hp ; 2004, 315 hp ; 2005, 315 hp ; 2006, 315 hp ; 2010, 555 hp ; 2011, 400 hp ; 2011, 555 hp ; 2012, 400 hp ; 2012, 555 hp ; 2013, 400 hp ; 2013, 555 hp ; 2014 ; 2015 ; 2015, 567 hp ; 2016 ; 2016, 567 hp ; 2017 ; 2017, 567 hp ; 2018 ; 2018, 567 hp ; 2019, 456 hp ; 2020, 456 hp ; 2020, 523 hp ; 2020, 600 hp ; 2020, 617 hp ; 2021, 523 hp ; 2021, 600 hp ; 2021, 617 hp ; 2022, 523 hp ; 2022, 600 hp ; 2022, 617 hp ; 2023, 523 hp ; 2023, 600 hp ; 2023, 617 hp ; 2024 ; 2024, 617 hp ; 2025 ; 2025, 617 hp ; 2026 ; 2026, 617 hp BMW 6 Series : 2004 ; 2005 ; 2012 ; 2012, 560 hp ; 2013 ; 2013, 560 hp ; 2014 ; 2014, 560 hp ; 2015 ; 2015, N63 ; 2015, 560 hp ; 2016 ; 2016, N63 ; 2016, 560 hp ; 2017 ; 2017, N63 ; 2017, 560 hp ; 2018 ; 2018, N63 ; 2018, 560 hp ; 2019 ; 2019, N63 ; 2019, 560 hp What varies across the family
Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.
3 of 12 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 BMW engines