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Chevrolet LS Engine Specs
Bore, stroke, displacement and compression for all 57 Chevrolet LS engines, compared side by side. Plus rod ratio and head specs where published.
At a glance
Displacement 293–454 ci Cylinders 8 Bore 3.780–4.185" Stroke 3.268–4.125" Compression 9.0–11.0:1 Advertised power 230–638 hp Years 1992–2021
Engines in this family
Engine Displacement Bore × Stroke CR HP LSX454 454 ci 4.185" × 4.125" 11:1 620 L19 454 ci 4.185" × 4.125" — 230 L29 454 ci 4.185" × 4.125" — 290 LS7 427 ci 4.125" × 4" 11:1 505 LS7 427 ci 4.125" × 4" — 505 L99 376 ci 4.065" × 3.622" 10.4:1 400 LS · 4.065" × 3.622" · 9.1:1 376 ci 4.065" × 3.622" 9.1:1 556–638 LSX376-B8 376 ci 4.065" × 3.622" 9:1 473 LSX376-B15 376 ci 4.065" × 3.622" 10.8:1 530 LS3 376 ci 4.065" × 3.622" 10.7:1 430 L9H 376 ci 4.065" × 3.622" 10.5:1 403 L99 376 ci 4.065" × 3.622" — 400 LS3 376 ci 4.065" × 3.622" — 426–430 LSA 376 ci 4.065" × 3.622" — 580 LS9 376 ci 4.065" × 3.622" — 638 L9H 376 ci 4.065" × 3.622" — 395–403 L92 376 ci 4.065" × 3.622" — 403 LS · 4.000" × 3.622" · 10.4:1 364 ci 4" × 3.622" 10.4:1 361–362 LY6 364 ci 4" × 3.622" 9.6:1 367 LS2 364 ci 4" × 3.622" 10.9:1 400 LQ4 364 ci 4" × 3.622" 9.4:1 300 LQ9 364 ci 4" × 3.622" 10:1 345 L77 364 ci 4" × 3.622" — 355 LS2 364 ci 4" × 3.622" — 400 LQ9 364 ci 4" × 3.622" — 345 L76 364 ci 4" × 3.622" — 366–367 LQ4 364 ci 4" × 3.622" — 300–335 LY6 364 ci 4" × 3.622" — 352–360 L96 364 ci 4" × 3.622" — 360 LC8 364 ci 4" × 3.622" — 360 LS1 346 ci 3.9" × 3.622" 10.1:1 305 LS6 346 ci 3.9" × 3.622" 10.5:1 385 LS1 346 ci 3.9" × 3.622" — 320–350 LS6 346 ci 3.9" × 3.622" — 385–405 LS4 325 ci 3.7799" × 3.622" 10:1 303 LS · 3.780" × 3.622" · 9.5:1 325 ci 3.7799" × 3.622" 9.5:1 270–295 LS · 3.780" × 3.622" · 9.9:1 325 ci 3.7799" × 3.622" 9.9:1 300–320 LS4 325 ci 3.7799" × 3.622" — 303 LM7 325 ci 3.7799" × 3.622" — 270–295 L33 325 ci 3.7799" × 3.622" — 310 L59 325 ci 3.7799" × 3.622" — 285–295 LY5 325 ci 3.7799" × 3.622" — 315 LH6 325 ci 3.7799" × 3.622" — 315 LMG 325 ci 3.7799" × 3.622" — 315–320 LC9 325 ci 3.7799" × 3.622" — 315 L8B 325 ci 3.7799" × 3.622" — 355 L82 325 ci 3.7799" × 3.622" — 355 LY5 / LMG, LC9 325 ci 3.7799" × 3.622" — 310–320 LMG / LC9 325 ci 3.7799" × 3.622" — 315–320 LM7 / L59 325 ci 3.7799" × 3.622" — 285–295 LY5 / LMG 325 ci 3.7799" × 3.622" — 320 LY5 / LMG / LC9 325 ci 3.7799" × 3.622" — 320 LY5 / LH6 / LMG / LC9 325 ci 3.7799" × 3.622" — 315 LS · 3.780" × 3.268" · 9.1:1 293 ci 3.7799" × 3.2677" 9.1:1 295–302 LR4 293 ci 3.7799" × 3.2677" — 255–285 LY2 293 ci 3.7799" × 3.2677" — 295 L20 293 ci 3.7799" × 3.2677" — 302
Factory cars with a LS
Chevrolet Suburban : 1992, L19, 230 hp ; 1993, L19, 230 hp ; 1994, L19, 230 hp ; 1995, L19, 230 hp ; 1996, L29, 290 hp ; 1997, L29, 290 hp ; 1998, L29, 290 hp ; 1999, L29, 290 hp ; 2000, LM7, 285 hp ; 2000, LQ4, 300 hp ; 2001, LM7, 285 hp ; 2001, LQ4, 320 hp ; 2002, LM7, 285 hp ; 2002, L59, 285 hp ; 2002, LQ4, 320 hp ; 2003, LM7, 285 hp ; 2003, L59, 285 hp ; 2003, LQ4, 320 hp ; 2004, LM7, 295 hp ; 2004, L59, 295 hp ; 2004, LQ4, 325 hp ; 2005, LQ4 ; 2005, LM7, 295 hp ; 2005, L59, 295 hp ; 2006, LM7, 295 hp ; 2006, L59, 295 hp ; 2006, LQ4, 335 hp ; 2007, L76 ; 2007, 320 hp ; 2007, LY6, 352 hp ; 2008, L76 ; 2008, 320 hp ; 2008, LY6, 352 hp ; 2009, 310 hp ; 2009, LY6, 352 hp ; 2009, L76, 366 hp ; 2010, LMG / LC9 ; 2011, LMG / LC9, 320 hp ; 2012, LMG / LC9, 320 hp ; 2013, LMG / LC9, 320 hp ; 2014, LMG / LC9, 320 hp Chevrolet Corvette : 1997, LS1, 345 hp ; 1998, LS1, 345 hp ; 1999, LS1, 345 hp ; 2001, LS1, 350 hp ; 2001, LS6, 385 hp ; 2002, LS1, 350 hp ; 2002, LS6, 405 hp ; 2007, LS2, 400 hp ; 2007, LS7, 505 hp ; 2008, LS3, 430 hp ; 2008, LS7, 505 hp ; 2009, LS3, 430 hp ; 2009, LS7, 505 hp ; 2009, LS9, 638 hp ; 2010, LS3, 430 hp ; 2010, LS7, 505 hp ; 2010, LS9, 638 hp ; 2011, LS3, 430 hp ; 2011, LS7, 505 hp ; 2011, LS9, 638 hp ; 2012, LS3, 430 hp ; 2012, LS7, 505 hp ; 2012, LS9, 638 hp ; 2013, LS3, 430 hp ; 2013, LS7, 505 hp ; 2013, LS9, 638 hp Chevrolet Silverado 1500 : 1999, LR4, 255 hp ; 1999, LM7, 270 hp ; 2000, LR4, 270 hp ; 2000, LM7, 285 hp ; 2001, LR4, 270 hp ; 2001, LM7, 285 hp ; 2002, LR4, 270 hp ; 2002, LM7, 285 hp ; 2003, LR4, 270 hp ; 2003, LM7, 285 hp ; 2003, LQ9, 345 hp ; 2004, LR4, 285 hp ; 2004, LM7, 295 hp ; 2004, LQ9, 345 hp ; 2005, LR4, 285 hp ; 2005, LM7, 295 hp ; 2005, L33, 310 hp ; 2005, LQ9, 345 hp ; 2006, LR4, 285 hp ; 2006, LM7, 295 hp ; 2006, L59, 295 hp ; 2006, L33, 310 hp ; 2006, LQ9, 345 hp ; 2007, LR4, 285 hp ; 2007, LY2, 295 hp ; 2007, LM7, 295 hp ; 2007, L59, 295 hp ; 2007, L33, 310 hp ; 2007, LY5, 315 hp ; 2007, LH6, 315 hp ; 2007, LMG, 315 hp ; 2007, LC9, 315 hp ; 2007, LQ9, 345 hp ; 2007, L76, 367 hp ; 2008, LY2, 295 hp ; 2008, LY5, 315 hp ; 2008, LH6, 315 hp ; 2008, LMG, 315 hp ; 2008, LC9, 315 hp ; 2008, L76, 367 hp ; 2009, LY2, 295 hp ; 2009, LY5, 315 hp ; 2009, LH6, 315 hp ; 2009, LC9, 315 hp ; 2009, LMG, 320 hp ; 2009, L76, 367 hp ; 2009, L9H, 403 hp ; 2010, L20, 302 hp ; 2010, LMG, 315 hp ; 2010, LC9, 315 hp ; 2010, L9H, 403 hp ; 2011, L20, 302 hp ; 2011, LMG, 315 hp ; 2011, LC9, 315 hp ; 2011, L9H, 403 hp ; 2012, L20, 302 hp ; 2012, LMG, 315 hp ; 2012, LC9, 315 hp ; 2012, L9H, 403 hp ; 2013, L20, 302 hp ; 2013, LMG, 315 hp ; 2013, LC9, 315 hp ; 2013, L9H, 403 hp ; 2016, L8B, 355 hp ; 2017, L8B, 355 hp ; 2018, L8B, 355 hp ; 2019, L82, 355 hp ; 2020, L82, 355 hp ; 2021, L82, 355 hp Chevrolet Silverado HD : 1999, LM7, 270 hp ; 1999, LQ4, 300 hp ; 2000, LM7, 285 hp ; 2000, LQ4, 300 hp ; 2001, LQ4, 300 hp ; 2002, LQ4, 300 hp ; 2003, LQ4, 300 hp ; 2004, LQ4, 300 hp ; 2005, LQ4, 300 hp ; 2006, LQ4, 300 hp ; 2007, LQ4, 300 hp ; 2007, LY6, 353 hp ; 2008, LY6, 353 hp ; 2009, LY6, 360 hp ; 2017, L96, 360 hp ; 2017, LC8, 360 hp ; 2018, L96, 360 hp ; 2018, LC8, 360 hp ; 2019, L96, 360 hp GMC Sierra 1500 : 1999, LR4, 255 hp ; 1999, LM7, 270 hp ; 2000, LR4, 270 hp ; 2000, LM7, 285 hp ; 2001, LR4, 270 hp ; 2001, LM7, 285 hp ; 2001, LQ4, 300 hp ; 2001, LQ4, 325 hp ; 2002, LR4, 270 hp ; 2002, LM7, 285 hp ; 2002, LQ4, 300 hp ; 2002, LQ4, 325 hp ; 2003, LR4, 270 hp ; 2003, LM7, 285 hp ; 2003, LQ4, 300 hp ; 2003, LQ4, 325 hp ; 2004, LR4, 285 hp ; 2004, LM7, 295 hp ; 2004, LQ4, 325 hp ; 2005, LR4, 285 hp ; 2005, LM7, 295 hp ; 2005, L33, 310 hp ; 2005, LQ9, 345 hp ; 2006, LR4, 285 hp ; 2006, LM7, 295 hp ; 2006, LQ4, 300 hp ; 2006, L33, 310 hp ; 2006, LQ9, 345 hp ; 2007, L92 ; 2007, LR4, 285 hp ; 2007, LY2, 295 hp ; 2007, LM7, 295 hp ; 2007, LQ4, 300 hp ; 2007, L33, 310 hp ; 2007, LY5 / LH6 / LMG / LC9, 315 hp ; 2007, LQ9, 345 hp ; 2007, L76, 367 hp ; 2008, LY2, 295 hp ; 2008, LY5 / LH6 / LMG / LC9, 315 hp ; 2008, L76, 367 hp ; 2008, L92, 403 hp ; 2009, LY2, 295 hp ; 2009, LY5 / LH6 / LMG / LC9, 315 hp ; 2009, L76, 367 hp ; 2009, L9H, 403 hp ; 2010, L20, 302 hp ; 2010, LMG / LC9, 315 hp ; 2010, L9H, 403 hp ; 2011, L20, 302 hp ; 2011, LMG / LC9, 315 hp ; 2011, L9H, 403 hp ; 2012, L20, 302 hp ; 2012, LMG / LC9, 315 hp ; 2012, L9H, 403 hp ; 2013, L20, 302 hp ; 2013, LMG / LC9, 315 hp ; 2013, L9H, 403 hp ; 2017, L8B, 355 hp ; 2018, L8B, 355 hp ; 2019, L82, 355 hp ; 2020, L82, 355 hp ; 2021, L82, 355 hp Chevrolet Camaro : 2000, LS1, 320 hp ; 2001, LS1, 325 hp ; 2002, LS1, 325 hp ; 2010, L99, 400 hp ; 2010, LS3, 426 hp ; 2011, L99, 400 hp ; 2011, LS3, 426 hp ; 2012, L99, 400 hp ; 2012, LS3, 426 hp ; 2012, LSA, 580 hp ; 2013, L99, 400 hp ; 2013, LS3, 426 hp ; 2013, LSA, 580 hp ; 2014, L99, 400 hp ; 2014, LS3, 426 hp ; 2014, LS7, 505 hp ; 2014, LSA, 580 hp ; 2015, L99, 400 hp ; 2015, LS3, 426 hp ; 2015, LS7, 505 hp ; 2015, LSA, 580 hp Chevrolet Tahoe : 2000, LR4, 275 hp ; 2000, LM7, 285 hp ; 2001, LR4, 275 hp ; 2001, LM7, 285 hp ; 2002, LR4, 275 hp ; 2002, LM7 / L59, 285 hp ; 2003, LR4, 275 hp ; 2003, LM7 / L59, 285 hp ; 2004, LR4, 285 hp ; 2004, LM7 / L59, 295 hp ; 2005, LR4, 285 hp ; 2005, LM7 / L59, 295 hp ; 2006, LR4, 285 hp ; 2006, LM7 / L59, 295 hp ; 2007, LY2, 295 hp ; 2007, LY5 / LMG, 320 hp ; 2008, L92 ; 2008, LY2, 295 hp ; 2008, LY5 / LMG, 320 hp ; 2009, LY2, 295 hp ; 2009, LY5 / LMG / LC9, 320 hp ; 2009, L9H, 395 hp ; 2010, LMG / LC9, 320 hp ; 2011, LMG / LC9, 320 hp ; 2012, LMG / LC9, 320 hp ; 2013, LMG / LC9, 320 hp ; 2014, LMG / LC9, 320 hp Pontiac Grand Prix : 2005, LS4, 303 hp ; 2006, LS4, 303 hp ; 2007, LS4, 303 hp ; 2008, LS4, 303 hp Chevrolet Impala : 2006, LS4, 303 hp ; 2007, LS4, 303 hp ; 2008, LS4, 303 hp ; 2009, LS4, 303 hp Chevrolet Monte Carlo : 2006, LS4, 303 hp ; 2007, LS4, 303 hp Chevrolet Caprice : 2011, L77, 355 hp ; 2012, L77, 355 hp ; 2013, L77, 355 hp ; 2014, L77, 355 hp ; 2015, L77, 355 hp ; 2016, L77, 355 hp ; 2017, L77, 355 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.
Compression spans 9:1 to 11:1, so fuel requirements differ meaningfully between members — worth checking before assuming parts interchange.
33 of 57 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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