| I have done a little research into this and so 
far have learned the following differences: 1) Intake manifold may be different 2) Cosmetic(Valve cover?) 3) DME programming (overboost etc.)     Are there ANY internal 
differences that would make one a better choice for a replacement or conversion motor? I also have heard of RS2 motor but 
advertised power seems to be simaler. Any info would be appreciated. 
TIA!! Todd 87 944 90-91 Coupe (thinking about 
it) |