This is the ultimate LS engine swap or engine upgrade resource.
Scroll through the tables below to find the LS or LS-based Vortec truck engine that you own or are interested in building. All of the key engine specs and expert engine-upgrade advice and guidance you’ll need are only one click away.
Gen. III LS Engine Upgrade Guides & Specs (1996-2007)
| Gen III LS & Vortech Engines | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Displacement | Engine Code | LS Engine Upgrade Guide | LS Engine Spec Guide | Reluctor | VIN (8th Digit) | Block | Head | Gen III Years | Vehicle |
| 4.8L | LR4 | LR4 Upgrade Guide | LR4 Engine Specs | 24X | V | Iron | Cathedral | 1999-06 | Truck/SUV/Van |
| 5.3L | LM4 | LM4 Upgrade Guide | LM4 Engine Specs | 24X | P | Alum. | Cathedral | 2003-05 | SUV |
| 5.3L | LM7 | LM7 Upgrade Guide | LM7 Engine Specs | 24X | T | Iron | Cathedral | 1999-07 | Truck/SUV |
| 5.3L | L59 | L59 Upgrade Guide | L59 Engine Specs | 24X | Z | Iron | Cathedral | 2002-07 | Truck/SUV |
| 5.3L | L33 | L33 Upgrade Guide | L33 Engine Specs | 24X | B | Alum. | Cathedral | 2005-07 | Truck |
| 5.7L | LS1 | LS1 Upgrade Guide | LS1 Engine Specs | 24X | G | Alum. | Cathedral | 1997-04 | F body/C5/GTO |
| 5.7L | LS6 | LS6 Upgrade Guide | LS6 Engine Specs | 24X | S | Alum. | Cathedral | 2001-05 | C5 Z06/CTS-V |
| 6.0L | LQ4 | LQ4 Upgrade Guide | LQ4 Engine Specs | 24X | U | Iron | Cathedral | 1999-07 | Truck |
| 6.0L | LQ9 | LQ9 Upgrade Guide | LQ9 Engine Specs | 24X | N | Iron | Cathedral | 2002-07 | Truck |
…
Gen. IV LS Engine Upgrade Guides & Specs (2005-Present)
| Gen IV LS & Vortech Engines | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Displacement | Engine Code | LS Engine Upgrade Guide | LS Engine Spec Guide | Reluctor | VIN (8th Digit) | Block | Head | Gen IV Years | Vehicle |
| 4.8L | L20 | L20 Upgrade Guide | L20 Engine Specs | 58X | A | Iron | Cathedral | 2010-17 | Truck/Van |
| 4.8L | LY2 | LY2 Upgrade Guide | LY2 Engine Specs | 58X | C | Iron | Cathedral | 2007-09 | Truck |
| 5.3L | LY5 | LY5 Upgrade Guide | LY5 Engine Specs | 58X | J | Iron | Cathedral | 2007-09 | Truck/SUV |
| 5.3L | LC9 | LC9 Upgrade Guide | LC9 Engine Specs | 58X | 3 or 7 | Alum. | Cathedral | 2007-14 | Truck/SUV |
| 5.3L | LH6 | LH6 Upgrade Guide | LH6 Engine Specs | 24X/58X | M | Alum. | Cathedral | 2005-09 | SUV |
| 5.3L | LH8 | LH8 Upgrade Guide | LH8 Engine Specs | 58X | L | Alum. | Cathedral | 2008-09 | Truck/SUV |
| 5.3L | LH9 | LH9 Upgrade Guide | LH9 Engine Specs | 58X | P | Alum. | Cathedral | 2010-12 | Truck |
| 5.3L | LMF | LMF Upgrade Guide | LMF Engine Specs | 58X | 4 | Iron | Cathedral | 2010-14 | Vans |
| 5.3L | LMG | LMG Upgrade Guide | LMG Engine Specs | 58X | 0 | Iron | Cathedral | 2007-14 | Truck/SUV |
| 5.3L | LS4 | LS4 Upgrade Guide | LS4 Engine Specs | 24X/58X | C | Alum. | Cathedral | 2005-09 | FWD car |
| 6.0L | LS2 (Car) | LS2 (Car) Upgrade Guide | LS2 (Car) Engine Specs | 24X/58X | U | Alum. | Cathedral | 2005-2007 | Corvette/GTO/CTS-V |
| 6.0L | LS2 (Truck) | LS2 (Truck) Upgrade Guide | LS2 (Truck) Engine Specs | 24X/58X | H | Alum. | Cathedral | 2005-06, 2007-09 | SSR/TBSS, TBSS/9-7X Aero |
| 6.0L | L76 (Car) | L76 (Car) Upgrade Guide | L76 (Car) Engine Specs | 58X | Y | Alum. | Rectangle | 2008-10 | Pontiac G8 |
| 6.0L | L76 (Truck) | L76 (Truck) Upgrade Guide | L76 (Truck) Engine Specs | 58X | Y | Alum. | Rectangle | 2007-09 | Truck/SUV |
| 6.0L | L77 | L77 Upgrade Guide | L77 Engine Specs | 58X | 2 | Alum. | Rectangle | 2011-17 | Caprice PPV, Holden VE2/VF |
| 6.0L | L96 | L96 Upgrade Guide | L96 Engine Specs | 58X | G | Iron | Rectangle | 2010-17 | Truck/SUV/Van |
| 6.0L | L98 | L98 Upgrade Guide | L98 Engine Specs | 58X | N/A | Alum. | Rectangle | 2007-08 | Holden |
| 6.0L | LC8 | LC8 Upgrade Guide | LC8 Engine Specs | 58X | B | Iron | Rectangle | 2011-16 | CNG fuel |
| 6.0L | LFA | LFA Upgrade Guide | LFA Engine Specs | 58X | 5 | Alum. | Cathedral | 2008-09 | Hybrid Truck/SUV |
| 6.0L | LY6 | LY6 Upgrade Guide | LY6 Engine Specs | 58X | K/N | Iron | Rectangle | 2007-14 | Truck/SUV/Van |
| 6.0L | LZ1 | LZ1 Upgrade Guide | LZ1 Engine Specs | 58X | J | Alum. | Cathedral | 2010-13 | Hybrid/Truck/SUV |
| 6.2L | L92 | L92 Upgrade Guide | L92 Engine Specs | 58X | 8 | Alum. | Rectangle | 2007-08 | SUV |
| 6.2L | L94 | L94 Upgrade Guide | L94 Engine Specs | 58X | F | Alum. | Rectangle | 2010-14 | SUV |
| 6.2L | L99 | L99 Upgrade Guide | L99 Engine Specs | 58X | J | Alum. | Rectangle | 2010-15 | Camaro (auto) |
| 6.2L | L9H | L9H Upgrade Guide | L9H Engine Specs | 58X | 2 | Alum. | Rectangle | 2009-14 | Truck/SUV |
| 6.2L | LS3 | LS3 Upgrade Guide | LS3 Engine Specs | 58X | W | Alum. | Rectangle | 2008-17 | Performance Cars, C6 Grand Sport |
| 6.2L | LSA | LSA Upgrade Guide | LSA Engine Specs | 58X | P | Alum. | Rectangle | 2008-15 | CTS-V, 5th Gen ZL-1 |
| 6.2L | LS9 | LS9 Upgrade Guide | LS9 Engine Specs | 58X | T | Alum. | Rectangle | 2009-13 | Corvette ZR-1 |
| 7.0L | LS7 | LS7 Upgrade Guide | LS7 Engine Specs | 58X | E | Alum. | Square | 2006-15 | C6 Z06, Camaro Z28 |
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I have a 81 c/20 chevy truck 350c 400 turbo
I am looking for a replacement 6 liter.
I have a unmolested 6.0 Ls moter in a police suburban 114,211 miles 421 hp 397 pounds of tork that I will trade for a generation 1 LS motor 5.3 with the transmission this 6.0 liter engine and transmission I have did nothing but transport prisoners back and forth by the US Marshals from Canada to California it ain’t never pulled nothing in his life but it’s a straight monster
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I have a 94 Chevy cab in a half Dilley with a 454 and want to change to a LS motor what is the best one to buy.thanx K B
454 swap to LS motor in a 1994 Chevy dulley c3500 cab in a half long bed
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Anyway someone can help me out? I have an 05 Silverado ext cab 2wheel drive withe the 5.3 vortec. I believe I just spun a rod bearing this past week and I am looking into replacing the motor. What I am confused about is what motor I can put back into it. I’d like to stay with the 5.3 it’s an lm7 vin “t”. Can someone tell me which motor I’d be able to get and be able to drop right in without having to change anything else. For instance does it have to be the same vin “t” motor to match up. As far as my understanding I can put any 5.3 in it out of a Silverado suburban Tahoe or Sierra is that correct? Any advice would be greatly appreciated. Thanks
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