LS based GM small-block engine | |
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Overview | |
Manufacturer | General Motors |
Production | 1995–present |
Layout | |
Configuration | 90º V8 |
Valvetrain | OHV 2 valves x cyl. |
Chronology | |
Predecessor |
Generation III | |
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GM LS1 engine in a Chevrolet Corvette C5 | |
Overview | |
Manufacturer | General Motors |
Also called | Vortec |
Production | 1997-2007 |
Layout | |
Configuration | 90° V8 |
Displacement |
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Cylinder bore | |
Piston stroke |
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Block material | |
Head material |
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Valvetrain | OHV 2 valves per cylinder |
Combustion | |
Fuel system | Sequential multi-port fuel injection |
Fuel type | Gasoline, E85 |
Oil system | Wet sump |
Cooling system | Water-cooled |
Chronology | |
Predecessor | |
Successor | Generation IV |
Generation IV | |
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Overview | |
Manufacturer | General Motors |
Also called | Vortec |
Production | 2005–present |
Layout | |
Configuration | 90° V8 |
Displacement |
|
Cylinder bore |
|
Piston stroke |
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Block material | Aluminum, Cast iron |
Head material | Aluminum |
Valvetrain | OHV 2 valves per cylinder |
Combustion | |
Fuel system | Sequential multi-port fuel injection |
Fuel type | Gasoline, E85 |
Oil system | Wet sump, Dry sump |
Cooling system | Water-cooled |
Chronology | |
Predecessor | Generation III |
Successor | Generation V |
Bore & stroke (in/mm): | 3.78 x 3.62/96 x 92 |
Block material: | cast aluminum |
Cylinder head material: | cast aluminum |
Valvetrain: | OHV, 2 valves per cylinder |
Ignition system: | coil near plug, platinum-tipped spark plugs, low-resistance spark plug wires |
Fuel delivery: | sequential fuel injection |
Compression ratio: | 9.9:1 |
Horsepower (hp/kW @ rpm): | 300/224 @ 5200 |
Torque (lb.-ft./Nm @ rpm): | 320/434 @ 4000 |
Recommended fuel: | regular unleaded |
Maximum engine speed (rpm): | 6000 |
Emissions controls: | evaporative system, four close-couple and underfloor catalytic converters |
Generation V | |
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Overview | |
Manufacturer | General Motors |
Also called | Ecotec3 |
Production | 2013–present |
Layout | |
Configuration | V6, V8 |
Displacement |
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Cylinder bore |
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Piston stroke | 92 mm (3.622 in) |
Block material | Aluminum |
Head material | Aluminum |
Valvetrain | OHV 2 valves / cyl. |
Compression ratio | |
Combustion | |
Fuel system | Direct injection |
Fuel type | Gasoline, E85 |
Oil system | Wet sump |
Cooling system | Water-cooled |
Chronology | |
Predecessor | Generation IV |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2014–present | Chevrolet Corvette C7 | 455 hp (339 kW) @ 6000 rpm | 460 lb⋅ft (624 N⋅m) @ 4600 rpm | link |
460 hp (343 kW) @ 6000 rpm (Performance Exhaust) | 465 lb⋅ft (630 N⋅m) @ 4600 rpm (Performance Exhaust) | link | ||
2016–present | Chevrolet Camaro SS | 455 hp (339 kW) @ 6000 rpm | 455 lb⋅ft (617 N⋅m) @ 4400 rpm |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2014–present | Chevrolet Silverado/GMC Sierra | 420 hp (313 kW) @ 5600 rpm | 460 lb⋅ft (624 N⋅m) @ 4100 rpm | link |
GMC Yukon Denali/Denali XL | link | |||
Cadillac Escalade/Escalade ESV | link |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2020–present | Chevrolet Silverado HD/GMC Sierra HD | 401 hp (299 kW) @ 5200 rpm | 464 lb⋅ft (629 N⋅m) @ 4000 rpm |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2015–present | Chevrolet Corvette Z06 | 650 hp (485 kW) @ 6400 rpm | 650 lb⋅ft (881 N⋅m) @ 3600 rpm | link |
2016–present | Cadillac CTS-V | 640 hp (477 kW) @ 6400 rpm | 630 lb⋅ft (854 N⋅m) @ 3600 rpm | ′ |
2017–present | Chevrolet Camaro ZL1 | 650 hp (485 kW) @ -- | 650 lb⋅ft (881 N⋅m) @ -- | ′ |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2019–present | Chevrolet Corvette ZR1 | 755 hp (563 kW) @ 6400 rpm | 715 lb⋅ft (969 N⋅m) @ 3600 rpm | ' |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2014–2019 | Chevrolet Silverado/GMC Sierra | 355 hp (265 kW) @ 5600 rpm | 383 lb⋅ft (519 N⋅m) @ 4100 rpm | link |
376 hp (280 kW) @ 5600 rpm E85 | 416 lb⋅ft (564 N⋅m) @ 4000 rpm E85 | |||
2014–present | Chevrolet Tahoe/GMC Yukon | 355 hp (265 kW) @ 5600 rpm | 383 lb⋅ft (519 N⋅m) @ 4100 rpm | link |
376 hp (280 kW) @ 5600 rpm E85 | 416 lb⋅ft (564 N⋅m) @ 4000 rpm E85 | |||
2014–present | Chevrolet Suburban/GMC Yukon XL | 355 hp (265 kW) @ 5600 rpm | 383 lb⋅ft (519 N⋅m) @ 4100 rpm | link |
376 hp (280 kW) @ 5600 rpm E85 | 416 lb⋅ft (564 N⋅m) @ 4000 rpm E85 |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2016–2018 | Chevrolet Silverado/GMC Sierra | 355 hp (265 kW) @ 5600 rpm | 383 lb⋅ft (519 N⋅m) @ 4100 rpm |
Year(s) | Model | Power | Torque | Dyno Chart |
---|---|---|---|---|
2014–present | Chevrolet Silverado/GMC Sierra | 285 hp (213 kW) @ 5300 rpm | 305 lb⋅ft (414 N⋅m) @ 3900 rpm | link |
297 hp (221 kW) @ 5300 rpm E85 | 330 lb⋅ft (447 N⋅m) @ 3900 rpm E85 |
Gen III/IV/V | Years Offered | Engine Code (vin code) | Power (hp) | Torque (lb.-ft.) | Size (L) | Fuel Type (E85/89/91/93) | Bore (in) | Stroke (in) | Compression Ratio | Block & Heads / Iron or Aluminum | Block Features |
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III | 1997-05 | LS1 (G) | 305-350 @ 5600 | 350-365 @ 4400 | 5.7 | 91[27] | 3.90 | 3.62 | 10.25:1 | Aluminum | |
III | 2001-05 | LS6 (S) | 385-405 @ 6000 | 385-400 @ 4800 | 5.7 | 3.90 | 3.62 | 10.5:1 | Aluminum | ||
III | 1999-07 | LR4 (V) | 255-285 | 285-295 | 4.8 | 3.78 | 3.3 | 9.45:1 | Iron/Alum. heads | ||
III | 1999-07 | LM7 (T) | 270-295 | 315-335 | 5.3 | 3.78 | 3.62 | 9.49:1 | Iron/Alum. heads | ||
III | 2002-07 | L59 (Z) | 285-295 | 320-335 | 5.3 | E85-capable | 3.78 | 3.62 | 9.9:1 | Iron/Alum. heads | |
III | 2003-04 | LM4 (P) | 290 | 325 | 5.3 | 3.78 | 3.62 | 10.0:1 | Aluminum | ||
III | 2005-08 | L33 (B) | 310 @ 5200 | 335 @ 4400 | 5.3 | 3.78 | 3.62 | 10.0:1 | Aluminum | ||
III | 1999-08 | LQ4 (U) | 300-325 @ 5200 | 360-370 @ 4400 | 6.0 | 4.00 | 3.62 | 9.4:1 | Iron/Iron-Alum. heads | ||
III | 2002-07 | LQ9 (N) | 345 @ 5200 | 380 @ 4000 | 6.0 | 4.00 | 3.62 | 10.0:1 | Iron/Alum. heads | ||
IV | 2008-17 | LS3 (W) | 426-436 @ 5900 | 420-428 @ 4600 | 6.2 | 93rec | 4.06 | 3.62 | 10.7:1 | Aluminum/Alum. heads | sodium exhaust valves |
IV | 2010-15 | L99 (J) | 400 @ 5900 | 410 @ 4300 | 6.2 | E85-capable | 4.06 | 3.62 | 10.4:1 | Aluminum/Alum. heads | AFM, VVT, |
IV | 2009-11 | LSA (P) | 556-580 @ 6100 | 551-556 @ 3800 | 6.2 | 93req | 4.06 | 3.62 | 9.1:1 | Aluminum/Alum. heads | |
IV | 2010-12 | L94 (F) | 403 @ 5700 | 417 @ 4300 | 6.2 | E85-capable | 4.06 | 3.62 | 10.4:1 | Aluminum/Alum. heads | AFM, VVT |
IV | 2007-09 | L76 (Y) | 361-367 @ 5600 | 375-385 @ 4400 | 6.0 | 4.00 | 3.62 | 10.4:1 | Aluminum | AFM | |
IV | 2011-16 | L77 (2) | 362 @ 5700 | 391 @ 4400 | 6.0 | E85-capable | 4.00 | 3.62 | 10.4:1 | Aluminum | AFM |
IV | 2010-17 | L96 (G) | 322-360 @ 4400-5400 | 373-382 @ 4200-4400 | 6.0 | E85-capable | 4.00 | 3.62 | 9.7:1 | Iron/Alum. heads | VVT |
IV | 2009-10 | L98 (H) | 362 @ 5700 | 391 @ 4400 | 6.0 | 4.00 | 3.62 | 10.4:1 | Aluminum | L76 with AFM hardware removed | |
IV | 2007-09 | LY2 (C) | 260-295 | 295-305 | 4.8 | 3.78 | 3.3 | 9.08:1 | Iron/Alum. heads | no VVT | |
IV | 2010-12 | L20 (A) | 260-302 @ 5400 | 295-305 @ 4600 | 4.8 | E85-capable | 3.78 | 3.3 | 8.8:1 | Iron/Alum. heads | no AFM, VVT |
IV | 2005-09 | LH6 (M) | 300-315 | 330-338 | 5.3 | 3.78 | 3.62 | 9.95:1 | Aluminum | AFM, VVT* | |
IV | 2007-09 | LY5 (J) | 315-320 @ 5200 | 335-340 @ 4000 | 5.3 | 3.78 | 3.62 | 9.95:1 | Iron/Alum. heads | AFM, VVT* | |
IV | 2008-12 | LMG (0) | 315-320 @ 5200 | 335-340 @ 4000 | 5.3 | E85-capable | 3.78 | 3.62 | 9.6:1 | Iron/Alum. heads | AFM, VVT* |
IV | 2007-12 | LC9 (3) | 315-320 @ 5400 | 335 @ 4000 | 5.3 | E85-capable | 3.78 | 3.62 | 9.95:1 | Aluminum | AFM, VVT* |
IV | 2005-09 | LS4 (C) | 303 @ 5600 | 323 @ 4400 | 5.3 | 3.78 | 3.62 | 10.0:1 | Aluminum | AFM, FWD | |
IV | 2008-09 | LH8 (L) | 300 @ 5200 | 320 @ 4000 | 5.3 | 3.78 | 3.62 | Aluminum | |||
IV | 2007-08 | L92 (8) | 403 | 415 | 6.2 | 4.06 | 3.62 | 10.5:1 | Aluminum | VVT | |
IV | 2009-12 | L9H (2) | 403 | 415 | 6.2 | E85-capable* | 4.06 | 3.62 | 10.5:1 | Aluminum | VVT |
IV | 2005-07,09 | LS2 (U) | 390-400 @ 6000 | 400 @ 4400 | 6.0 | 93 | 4.00 | 3.62 | 10.9:1 | Aluminum | |
IV | 2007-10 | LY6 (K) | 361 @ 5600 | 385 @ 4400 | 6.0 | 4.00 | 3.62 | 9.67:1 | Iron/Alum. heads | VVT | |
IV | 2008-09 | LFA (5) | 332 @ 5100 | 367 @ 4100 | 6.0 | Hybrid | 4.00 | 3.62 | 10.8:1 | Aluminum | AFM |
IV | 2010-12 | LZ1 (J) | 332 @ 5100 | 367 @ 4100 | 6.0 | Hybrid | 4.00 | 3.62 | 10.8:1 | Aluminum | AFM, VVT |
IV | 2009-13 | LS9 (R/T)[28] | 638 @ 6500 | 604 @ 3800 | 6.2 | 92 | 4.065 | 3.62 | 9.1:1 | Aluminum/Alum. heads | sodium exhaust valves, 6600 redine, ZR1 |
IV | 2006-15 | LS7 (E) | 505 @ 6300 | 470 @ 4800 | 7.0 | 91 | 4.125 | 4.00 | 11.0:1[29] | Aluminum | 7000 redline, sodium exhaust valves |
IV/V | none | LSX376 | 450 @ 5900 | 444 @ 4600 | 6.2 | 92 | 4.06 | 3.62 | 9:1 | Aftermarket | |
IV/V | none | LSX454 | 620 @ 6200 | 590 @ 4800 | 7.4 | 92 | 4.185 | 4.125 | 11.0:1 | Aftermarket | |
IV/V | none | LSX454R | 776 @ 7000 | 680 @ 4500 | 7.4 | 110 | 4.185 | 4.125 | 13.1:1 | Aftermarket[30] | |
V | 2014–present | LT1 | 455-460 @ 6000 | 455-465 @ 4600 | 6.2 | 93rec | 4.06 | 3.62 | 11.5:1 | Aluminum/Alum. Heads | |
V | 2015–present | LT4 | 640-650 @ 6400 | 630-650 @ 3600 | 6.2 | 4.06 | 3.62 | 10:1 | Aluminum/Alum. heads | DI, 2.3L supercharger | |
V | 2018–present | LT5 | 755 @ 6400 | 715 @ 3600 | 6.2 | 4.06 | 3.62 | 10:1 | Aluminum/Alum. heads | VVT, hybrid DI, 2.6L supercharger, ZR1 | |
V | 2014–present | L83 (C) | 355-376 @ 5600 | 383-416 @ 4100 | 5.3 | E85-capable | 3.78 | 3.62 | 11.0:1 | Aluminum/Alum. heads | |
V | 2014–present | L86 (J) | 420 @ 5600 | 460 @ 4100 | 6.2 | NOT E85-capable | 4.06 | 3.62 | 11.5:1 | Aluminum/Alum. heads | |
V | 2020– | L8T[31] | 401 @ 5200 | 464 @ 4000 | 6.6 | 4.06 | 3.85 | 10.5:1 | Iron/Alum. heads | VVT |
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