Any f series or h series. Most f series are in accords, h series are the preludes. This would most likely be your best option being that we have heavy cars. Mine more so. But the h22 has enough torque to gt or cars rollin nicely. THere are two main types of h series engines h22 vtec and h23 non-vtec. Some say that h23 are better for FI but I personally am going with a nice JDM h22. Not much of a difference between the two and if you have an f series in your car now you can bolt an h right up to your f tranny. I am going with the full swap as in engine, tranny, lsd, axles and such. You can get a full H22 swap off of Osakamotorsonline.com for about 2000 plus a smmall amount for shipping, or you can do a search and find prices for yourself.