First let me say i dont usually mess with preludes but thought about a swap into my rex and wanted to know wich motor is better. Which of these motors has more horse power, the h22a1 or the h22a4? i searched and found how to install one but not how much horse power it has. any input will be great.

Thanks J.D.

 

H22A1 has 190hp at the fly
H22A4 has 195hp at the fly

But really it's just a marketing ploy. Similar power, but some differences are that the A1 has a closed deck and A4 has open. A4 uses floating wrist piston/rod. Check the FAQ