3.6 liters is 219.7 cubic inches (3,600 cc) by straight math. Makers round, so the engines sold as 3.6 L measure from 217.5 to 222.7 cubic inches.
The most common: 217.5 ci (Cadillac 217 (High Feature V6)); 220.0 ci (Jeep 220 (Pentastar)); 222.7 ci (Cadillac 223 (High Feature V6)); 221.0 ci (Ford 221 (Flathead V8)); 221.5 ci (Subaru 220 (EZ)); 220.9 ci (Ford 221 (Windsor)).
| Engine | Codes | Years | Bore × stroke | Cubic inches | cc | Cylinders |
|---|---|---|---|---|---|---|
| Ford 221 (Flathead V8) | Model 48, Model 68, Model 78, Model 81A | 1932–1942 | 3.063" × 3.750" | 221.0 | 3,621 | 8 |
| Ford 221 (Windsor) | — | 1962–1963 | 3.500" × 2.870" | 220.9 | 3,620 | 8 |
| Porsche 220 (M64) | M64/60, M64/01, M64/50, M96/76 | 1989–2011 | 3.937" × 3.008" | 219.7 | 3,600 | 6 |
| Mercedes-Benz 220 | M104 | 1995–1997 | 3.583" × 3.638" | 220.0 | 3,606 | 6 |
| Porsche 219 | M96/03, M96/05, M97 3.6 | 2002–2008 | 3.780" × 3.260" | 219.4 | 3,596 | 6 |
| Cadillac 217 (High Feature V6) | LY7, LF3, LF4 | 2004–2024 | 3.701" × 3.370" | 217.5 | 3,564 | 6 |
| Volkswagen 220 (VR6) | — | 2006–2018 | 3.504" × 3.795" | 219.6 | 3,598 | 6 |
| Porsche 220 | — | 2007–2018 | 3.504" × 3.795" | 219.6 | 3,598 | 6 |
| Porsche 221 (MA1) | MA1.02, MA1 3.6 | 2009–2012 | 3.819" × 3.209" | 220.5 | 3,614 | 6 |
| Subaru 220 (EZ) | EZ36D | 2010–2019 | 3.622" × 3.583" | 221.5 | 3,630 | 6 |
| Jeep 220 (Pentastar) | — | 2011–2026 | 3.780" × 3.268" | 220.0 | 3,605 | 6 |
| Porsche 220 | — | 2015–2018 | 3.780" × 3.268" | 220.0 | 3,605 | 6 |
| Cadillac 223 (High Feature V6) | — | 2016–2026 | 3.740" × 3.378" | 222.7 | 3,649 | 6 |
| Porsche 219 (9A2 Evo) | — | 2025–2026 | 3.819" × 3.189" | 219.2 | 3,591 | 6 |
Cubic inches and cc are worked out from each engine's bore and stroke. Years are the model years of the factory cars on this site that list the engine.
Start with the engine code: on 1981-and-later cars and trucks it is a character of the VIN (the 8th on most American makes), and most blocks carry a code stamp. Each engine's page lists its codes and the cars it came in. See the VIN engine code lists by make.
219.7 cubic inches by straight conversion (1 liter = 61.024 cubic inches). Real 3.6 L engines measure 217.5 to 222.7 cubic inches; the table above lists each one.
3,600 cc by definition. The engines sold as 3.6 L range from 3,564 to 3,649 cc.
Makers name engines by rounded sizes. The real size comes from bore × bore × stroke × 0.7854 × cylinders, so two engines sold as the same size are often a few cubic inches apart.