[hunterhound]

In a perfect world of stock vs stock, all original equipment as close as possible, who wins the battle of fuel economy, the CRX HF or Civic VX HB? Or, is it a wash between the two? I'm toying with idea of doing a swap of HB or CRX back to its factory engine and wanted some forum advise on which model may be the easiest to find, perform the swap, find factory parts, and last but not least, the most mpg possible. It's so hard to find one of these babies with original equipment so I thought I could buy one that has a swap with some other d series motor, put the original factory spec motor back in it and then sell the other motor to compensate for the cost of the reversal. Any comments or concerns about this transaction would be greatly appreciated. I am by no means a mechanical guru and would probably have someone else do the swap, but I want to ensure that I am getting the correct model and engine for the job. I also thought of getting some of the other models, such as a DX hatch or CRX, and then put the more fuel efficient HF or VX engine in that shell being as the weight doesn't seem that different, or am I making a mistake here by assuming that? Anything concerns or issues I may be overlooking would be greatly appreciated, so let the debate begin and I'll just sit back and absorb the abundance of information I often see from the forum users!