is it possible? Yes.
Will not be cheap and will require substantial wiring. Also, will need to be done in a very specific way with ALL the parts from the '98 in order to be CARB legal (aka SMOG legal) in california. Just off the tip of my head you're looking at: motor, harness, all accessories, trans, flex plate, converter, custom driveshaft, swapping the rear end gears (yours will be too low), dash cluster harness, immobilizer keys, harness, sensor, and immobilizer ecu, EVAP equipment, air intake tubing and maf, and the main ECU.
Versus buying a $5-600 '95-97 long block from a yard (with warranty) and swapping it out.
1. Black on Black 1999 LS400 PM-spec
-Platinum VIP-Figs Engineering
2. 1989 Toyota Supra white package
Current Status: -500 Internal System Error-
3. Black 2004 IS300 -Manaray-HKS-Eibach-
4. Ebony Teal 1995 LS400
Last edited by PureDrifter; Yesterday at 06:41 PM..