boosted99civicsi
New Member
Please don't bash I have looked. I have a 99 si civic and have searched high and low and found some info but not a real answer. I am just wondering what my engine came out of. It is stamped b16a like all others and is numbered 55xxxx I found info on 1 million series and 5 million up to 4 but not a 55. Any help would b appreciated guys