I'm looking at buying a 90' CRX Si for use as a drag car. My plan is to drop in a LS B18B1 motor and turbo it. How much usually do B18B1's go for? With the wiring harness, ECU and tranny? Thanks in advance!!

 

i usually see a b18b go for 1000-1200 for complete swaps or maybe more, for just shortblock or longblock, it goes for 600-800..

 

An LS swap will run you between $800 (for B18a) up to $1500 or more for a newer B18b. Both are practically identical, slightly more HP on the newer Bs (the differences have been covered if you do a search). You also gonna need a mount kit, so figure on another $400. If your looking for the easiest swap, get a 90-91 B18a. Those are non-obd so the new ecu, distributor, etc. will all plug up with your stock CRX wiring harness (if you have an si).