Is the 2.4 Honda engine a VTEC?

Yes—nearly all Honda 2.4‑liter four‑cylinder engines feature VTEC, most commonly in the form of i‑VTEC. The exact implementation varies by engine code and model year (performance vs. economy tuning, and later “Earth Dreams” variants), but if your Honda or Acura has a 2.4L engine, it almost certainly uses VTEC technology.

What “the 2.4 Honda engine” refers to

Honda’s 2.4‑liter engines span multiple generations and markets. In North America, the best known are the K‑series K24 engines (early 2000s to mid‑2010s) and the later direct‑injected “Earth Dreams” K24W family (mid‑2010s). Earlier, some regions also offered F‑series 2.4‑liter engines. Across these families, VTEC (or i‑VTEC) is standard, though how it’s used differs: economy‑tuned versions emphasize efficiency and emissions, while performance‑tuned versions prioritize power and a higher redline.

How VTEC/i‑VTEC works on Honda’s 2.4L engines

Economy‑tuned i‑VTEC (typical in CR‑V, Accord, Element)

On most K24 economy variants (for example, K24A1, K24A4/A8, K24Z1/Z2/Z3), i‑VTEC combines variable valve timing (cam phasing via VTC on the intake cam) with cam profile switching on the intake side. At light loads it can run a lower‑lift profile (and, on some versions, an economy mode that effectively uses one intake valve per cylinder) for efficiency, then switch to a higher‑lift profile for stronger mid/high‑rpm breathing.

Performance‑tuned i‑VTEC (TSX, Civic Si/ILX)

Performance variants such as the K24A2 (Acura TSX 2004–2008) and K24Z7 (Civic Si 2012–2015; Acura ILX 2.4 2013–2015) use more aggressive cam profiles and later VTEC engagement to increase top‑end power. These engines still pair VTEC with intake‑side cam phasing (VTC), but the calibration, valve lift, and duration are optimized for stronger output and a higher redline.

“Earth Dreams” K24W (direct injection, dual cam phasing)

Starting with the 2013 Accord and spreading to models like the 2015–2016 CR‑V and 2015–2017 Acura TLX 2.4, Honda’s K24W added direct fuel injection and dual VTC (phasing on both intake and exhaust cams). These engines retain i‑VTEC, but in many trims the VTEC mechanism acts on the exhaust side to support internal EGR and reduced pumping losses at low loads, while dual phasing manages overlap across the rev range for a broad, efficient powerband.

Common 2.4L Honda/Acura engines and whether they’re VTEC

The following list summarizes widely sold 2.4‑liter Honda/Acura engines, where they appeared, and how VTEC is applied. This helps identify what’s in your car and how its VTEC behaves.

• K24A1 — 2002–2006 CR‑V (NA): DOHC i‑VTEC (efficiency‑biased)
• K24A4/K24A8 — 2003–2012 Accord; 2003–2011 Element (NA): DOHC i‑VTEC (efficiency‑biased)
• K24A2 — 2004–2008 Acura TSX: DOHC i‑VTEC (performance‑tuned)
• K24Z1/Z2/Z3 — 2007–2011 CR‑V, Element, Accord (NA): DOHC i‑VTEC (efficiency‑biased)
• K24Z7 — 2012–2015 Civic Si; 2013–2015 Acura ILX 2.4: DOHC i‑VTEC (performance‑tuned)
• K24Z3 — 2009–2014 Acura TSX: DOHC i‑VTEC (sport‑tuned variant of Z‑series)
• K24W1/W7/W9 (“Earth Dreams”) — 2013–2017 Accord; 2015–2016 CR‑V; 2015–2017 Acura TLX 2.4 (markets vary): DOHC i‑VTEC with direct injection and dual VTC
• F24B/F24S (select markets, late 1990s–early 2000s Accord/ Odyssey overseas): SOHC VTEC in many variants

In short, whether it’s the earlier K24A/Z, the performance‑leaning TSX/Civic Si/ILX variants, or the later direct‑injected K24W, these 2.4‑liter engines use VTEC or i‑VTEC; what changes is which cam the mechanism targets and the calibration philosophy.

How to confirm VTEC on your specific 2.4L Honda

If you want to be absolutely certain about your car’s engine and VTEC configuration, these quick checks will verify it.

• Look at the valve/engine cover: Most 2.4s are labeled “i‑VTEC” or “Earth Dreams Technology.”
• Find the engine code: It’s stamped on the block (e.g., K24A2, K24Z7, K24W7). Cross‑reference against reliable guides or the owner’s manual.
• Check the under‑hood emission/engine sticker: It often lists the engine family and technology.
• Consult the owner’s manual or a dealer by VIN: The VIN build sheet will identify the engine and features.

These steps take the guesswork out of it and pin down the exact VTEC implementation your vehicle uses.

Key takeaways

Honda’s 2.4‑liter engines are synonymous with VTEC, evolving from intake‑side, efficiency‑oriented systems to performance‑tuned calibrations and, later, dual‑phased direct‑injected “Earth Dreams” designs. The badge might read i‑VTEC or Earth Dreams, but the variable‑valve‑control DNA is there across the lineup.

Summary

Most Honda 2.4‑liter engines are VTEC—specifically i‑VTEC—spanning K24A/Z performance and economy variants and the later direct‑injected K24W “Earth Dreams” units with dual cam phasing. Model, year, and engine code determine whether VTEC acts on the intake or exhaust side and how aggressively it’s tuned, but if it’s a 2.4L Honda four‑cylinder, it almost certainly has VTEC.

Which Honda engines are VTEC?

The first type is for performance engines like the K20A2 or K20Z3 used in the 2002-2006 RSX Type S or the 2006-2011 Civic Si and the second type is for economy engines like the K20A3 or K24A4 used in the 2002-2005 Civic Si or 2003-2007 Accord.

Does the Honda Accord 2.4 have VTEC?

2.4L 4-CYLINDER DOHC i-VTEC ENGINE.

Is the Honda 2.4 a good engine?

Yes, the Honda 2.4L (K24) engine is generally considered a good and reliable engine, known for longevity, good fuel economy, and decent performance with proper maintenance. However, common issues like oil consumption, timing chain wear, and certain transmission problems can occur, especially with longer oil change intervals or high mileage, but these can often be mitigated with regular maintenance and using the correct oil viscosity.
 
Pros:

• Reliability & Longevity: . Opens in new tabThe 2.4L engine is renowned for its dependability and can last well over 200,000 miles with proper care. 
• Performance & Efficiency: . Opens in new tabIt delivers a good balance of power, low-end torque, and fuel economy, with many users reporting high MPG even on older models. 
• VTEC System: . Opens in new tabThe VTEC variable valve-timing system enhances high-rpm power, making the engine feel more engaging. 
• Timing Chain: . Opens in new tabUnlike older engines with timing belts, the 2.4L uses a timing chain, which is designed to last the life of the engine. 

Potential Issues & Maintenance:

• Oil Consumption: Some 2.4L engines may consume oil over time; this is often manageable by monitoring oil levels and topping off as needed. 
• Timing Chain Wear: The timing chain and its components can wear out, especially with longer oil change intervals, potentially leading to noise (like rattling) or jumping. Regular oil changes with recommended grades are crucial for chain longevity. 
• Sludge Buildup: Longer oil change intervals can lead to sludge, which can affect the engine’s overall health and the timing chain. 

To Keep Your 2.4L Engine Running Well: 

• Regular Oil Changes: Adhere to recommended oil change intervals and use the appropriate oil viscosity to prevent sludge and ensure proper lubrication of the timing chain.
• Monitor Oil Levels: Check your oil level regularly and top it off as needed.
• Address Leaks Promptly: Fix oil leaks as soon as they are detected.
• Routine Inspections: Inspect components like the valve cover gasket and PCV valve to prevent issues.

How much HP does a 2.4 i-VTEC have?

Thanks to DI and numerous other clever elements, this engine produces ample torque—180 lb-ft at 3900 rpm (SAE net). Peak horsepower is rated at 184, occurring at 6400 rpm (SAE net).