Hi freaks, have shot cheap nigel new SD cylinder head. incl nw, hydros, valves. Well, have a B3, 1.8S, 90hp with the JN KeJetronic engine, i.e. the reduced 112hp engine. biggest differences to this are the lower compression (9.0 instead of 10:1), the head with smaller inlet valves and other camshaft! Well, is the question, does the head fit from SD (B3, 1.9E, 113hp) to JN? Difference was from the displacement more bore (82.5 instead of 81) and less stroke. n, basically yes, because Audi/VW will hardly have built a new block for the 1.9l. But what about the combustion chambers? Are those of the size identical to those of the DZ (1,8E, 112hp)? Or should I just rebuild the camshaft?