i just bought a motor and was told it was a 93 but i just want to make sure. dont bash me cause i searched and didnt find it.
does anyone know how to tell the difference from a 92-93 obd1 b18a and a 91 obd0 b18a? the motor didnt come with a dizzy or alternator so those options are out.
hope someone out there can help me out. thanx

 

night bump

 

bumo... anyone

 

Right above the exhaust ports there is a date..If it is a 93 head it should say 92 then 6-11 or 93 then ???

Also 92-93 B18a1 motors have more agressive cams and different intake manifold then 90-91..

 

what if it is stamped 9/1? does that mean is a 92 motor?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by XkjeldorX &raquo;</TD></TR><TR><TD CLASS="quote">what if it is stamped 9/1? does that mean is a 92 motor?</TD></TR></TABLE>

If it says 9/1 ,,then 6-11, that means its a 92 motor..

 

hope u can help me out. just went outside to look at the other numbers and these were it. starting from left to right, looking at the motor.
there is a 9/1, 1/0, 1/1 and the last one is either a 6/0 or 0/9
on the block it is stamped b18a1 and under that the numbers 3307740
on the head all the way to the left there is a number going up and down, that number is A111010764
can u tell me anything from this info?

 

Im thinking its a 91 head..

You can also tell by looking at the vin# on the motor,,The 10th digit will tell you..

M = 1991
N = 1992
P = 1993

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">Im thinking its a 91 head..

You can also tell by looking at the vin# on the motor,,The 10th digit will tell you..

M = 1991
N = 1992
P = 1993

</TD></TR></TABLE>

Thanks a ton for this post, I just learned something new on Honda-tech. Yay.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr.speaker &raquo;</TD></TR><TR><TD CLASS="quote">Im thinking its a 91 head..

You can also tell by looking at the vin# on the motor,,The 10th digit will tell you..

M = 1991
N = 1992
P = 1993

</TD></TR></TABLE>
well see i dont have the vin number from the motor thats why im trying to figure out by just things on the block and head.

 

Yellow clearish plugs also point to OBD 0.

 

the question is? what do want to do, the real difference about obd system is by generation, first off, obd stands for on board dianosic, meaning you can check if the car is running as it was design. as emission. the way you can tell the difference is you look on the plugs of the wiring harness, if the plugs are white for tan, thats obd 0, if they are grey, obd 1 or 2. as long is the same motor, it should work, no matter what year,, for ex b18a1 90-91 integra, b18a1 92-93 integra, both are the same motor but the both have different obd systems. as ecm just work differently..

 

i know there is no difference the thing is this motor is going into a 93 integra and i just want to know what year motor i have, i know if i have a obd 0 i can just make it obd 1 by switching injectors, dizzy and ecu, but i just want to know for myself so when i have to do something and year comes into play i'll know for sure.
what plugs are u tallking about AlexintegraGS-R? i dont have the dizzy, sparkplug wires or alternator, i do have the engine wire harness. can the engine harness tell me anything? thanx for trying to help out

 

If any of the engine plugs on the engine harness are yellowish clear, its obd O.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Danronian &raquo;</TD></TR><TR><TD CLASS="quote">If any of the engine plugs on the engine harness are yellowish clear, its obd O.</TD></TR></TABLE>
got it. its obd 0, im guessing 91 from the stamp on the head. i just have to get dizzy, injectors and ecu now. thanx to everyone that helped me out.