I bought an 89 rex with some about 221000 miles off eBay. The engine runs all rightâ€¦ But for you stock Rex HF owners out there you know that it has little if no powerâ€¦ The D15b6 in it is a great engine if you like getting 40 mpg. We all love the 40 mpg but the lack of power is frustrating to say the least. So I have come to the conclusion that a swap is needed and would be best. Now the problem I am having is choosing what engine to drop in. Some of my friends say that a b16a would be a nice engine to put in. My crazy friend thatâ€™s Integra crazed says drop an LSvtec in. I know that the b16a would fit nicely and would be formidable engine. I was told if I put the b16a in a turbo would be a good idea. But I'm told that a properly built frank would fit snugly in and be an all motor monster that in the least should be respected. Iâ€™m not to sure on prices of the engines as well. I know that I would want to build the engines myself so Iâ€™m also looking for price ranges for both. Any help would be great and much appreciated.