I know this has been discussed but I can’t find it. What engine came in what car? How do you know without finding a stamp on the engine. I’m looking at a 2004 Honda Accord · EX-L Coupe 2D. Wikipedia states the model years have a k24a3 or a4. I believe the a4 is the economy version and I would want the a3or a2. In the k20. It seems all would be true vetch except for the A3. Why is this so hard?