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Is the 6.0 Vortec an LS engine?
Yes. The 6.0 L "Vortec 6000" truck engines are LS-family V8s: the Gen III LQ4 (1999–2008) and LQ9 (2002–2007), and the Gen IV LY6 (2007–2013) and L96 (2010–2020), all iron-block with a 4.000 in bore and 3.622 in stroke. Aluminum 6.0 variants include the LS2 (car), L76/L77/L98 and the hybrid LFA/LZ1. They share LS mounts, bellhousing pattern and most swap parts.
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Every 6.0 L LS we list
- 6.0 L: 11 Gen III/IV engines; iron block: LQ4, LQ9, L96, LC8, LY6; aluminum: L76, L77, L98, LFA, LS2, LZ1; AFM on the L76, L77, LFA, LZ1; up to 400 hp from the factory.
| RPO | Family | Years | Size | HP | Block | Compression | AFM | VVT | Crank |
|---|---|---|---|---|---|---|---|---|---|
| LQ4 | Gen III | 1999–2008 | 6.0 L | 300–335 | iron | 9.40:1 | No | No | 24x |
| LQ9 | Gen III | 2002–2007 | 6.0 L | 345 | iron | 10.00:1 | No | No | 24x |
| L76 | Gen IV | 2006–2010 | 6.0 L | 348–367 | aluminum | 10.40:1 | Yes | Yes (truck applications only) | 58x |
| L77 | Gen IV | 2010–2017 | 6.0 L | 349–362 | aluminum | 10.40:1 | Yes | No | 58x |
| L96 | Gen IV | 2010–2020 | 6.0 L | 361 | iron | 9.70:1 | No | Yes | 58x |
| L98 | Gen IV | 2006–2010 | 6.0 L | 362 | aluminum | 10.40:1 | No | No | 58x |
| LC8 | Gen IV | 2010–2020 | 6.0 L | 342 | iron | 9.70:1 | No | Yes | 58x |
| LFA | Gen IV | 2008–2009 | 6.0 L | 332 | aluminum | 10.80:1 | Yes | Not confirmed | 58x |
| LS2 | Gen IV | 2005–2009 | 6.0 L | 390–400 | aluminum | 10.90:1 | No | No | 24x or 58x (by year) |
| LY6 | Gen IV | 2007–2013 | 6.0 L | 361 | iron | 9.60:1 | No | Yes | 58x |
| LZ1 | Gen IV | 2010–2013 | 6.0 L | 332 | aluminum | 10.80:1 | Yes | Yes | 58x |
From our engine table: GM ratings as published, which varied by year and vehicle. Each RPO links to its page with donors, swap notes and real-tune ranges.