Engine Model

I was just wondering what my engine model number is I drive a '87 Si. I have found a number on the engine it is A20A4 is this it??

yup

I have a better idea, can anyone give us the model # fpr all the engines that were put into our cars?

A20A1 carbed us engine A20A2 carbed forgine engine A20A3 EFI us engine A20A4 EFi forgine engine B20a JDM DOHC engine

does anyone know how much HP does A20A2 makes?

I would say about 100.

Hm, so A20A1 US specs makes 98Hp and A20A2 makes like 100.
i don't think so, there should be big number diff.

both 98 a20a3-4 122

which is the most powerful out of all teh a20's ? i heard somewhere my a20a4 was about 120hp

http://www.geocities.com/honda_club_egypt/engines.htm