what is the difference between a 91 b18a1 and a 93 b18a1. i work at a salvage yard and they list in my computer to be different, but they both look the same. any feedback would be a great help!!

 

the 91 motor is obd0, the 92-93 motor is obd1...if you wanna get the 92+ b18's, you also need that year's ecu to run everything (as well as a 4 wire o2 sensor, distributor from that year)

 

The 91 is OBD0 and has 130hp

The 93 is OBD1 and has 140 hp

 

are parts interchangable? i mean, can i turn the 93 obd1 engine into a obd0 engine. i have all the parts from the 91 and i want to use the 93 block and head(which has fewer miles) and change whatever i need to make it work as an obd0.

 

Yeah b series parts are interchangeable so you can run a 93 engine as an OBD0 engine but I would reccommend running OBD1

 

thanks for the help!! i would love to run obd1 but im getting all the stuff for an obd0 for $150!!!! all i gotta do now is find a b-series trany and im good to go!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nucivowner &raquo;</TD></TR><TR><TD CLASS="quote">what is the difference between a 91 b18a1 and a 93 b18a1. i work at a salvage yard and they list in my computer to be different, but they both look the same. any feedback would be a great help!!</TD></TR></TABLE>

90-91 is pre-obd and has 130hp
92-93 is obd1 and has 140hp
Both have cable trannys..

The 92-93 has more agressive cams ..