B18A1 Head on a B18B1 block

[Hondavtec4208]

(Im not sure if this belongs in "other automotive" if so sorry my bad )

Anyway, my friend is probly going to be parting off his 92 Integra "DA" because the bottom end is blown, and is just tiered of it because he has invested so much money into it and it just keeps braking down on him.

I want to buy his A1 head and put it on my B1 block, because he has stage 2 cams, valves, Springs, Retainers, BBK intake mani., 70MM throttle body, but was wondering if it will be a direct bolt up and run fine with some tuning? Ive heard numerous times that it will be fine but still want a second opinion from you guys. Also will I need to to do anything with the wiring in the sensors, because, his is OBD1 and mine is OBD2?

Also, I have a P75 chipped by MRX but is OBD1. Since my teg also uses the P75 "but OBD2" could I just buy a conversion harness and have it tuned for the head?

Any additional information that I may need to know would be great.

Thanks, and sorry again if this belongs on the other automotive form.

[NAiL05]

b18a1 will fit on a b18b1 block. They are virtually the same.

[HondaB18]

B18a/b motors are basically the same but except for a few minor differences that relates to the ODB. It should bolt right up, once you get the ODB2 to OBD1 conversion harness and get the car tuned.

[NAiL05]

There are some obd1 B18B1 also.

[HondaB18]

Yea but I am referring to his situation.

His friend = ODB1 92-93 Integra if his engine hasn't been changed in his 2nd gen.
Him = ODB2 (96+)

There are ODB1 B18B but they are still not 100% the same.

[NAiL05]

Yea but I am referring to his situation.

His friend = ODB1 92-93 Integra if his engine hasn't been changed in his 2nd gen.
Him = ODB2 (96+)

There are ODB1 B18B but they are still not 100% the same.

Ahh didnt see that lol.

[Hondavtec4208]

alright well that helps alot thanks guys
any other suggestions please let me know