Originally posted by kirk1
Is that to say that the 2.3-16 wasn't improved for 1988 and was eventually replaced by the 2.5-16 which was an improvement? Will a 1988 2.3-16 motor bolt into a 1986 2.3-16 five speed and hookup electronically, electrically, etc.?
Do a part number check on the ignition and injection systems - the 16v were a bit parts bin specials, and different chassis number ranges had different bits.
The biggest difference will probably be the Fuel Distribution unit, SLS pump, and CIS-E module.