I have been wondering lately whether there was any real diference to the installation of the engine in Quantum-style cars (longitutdinal) versus Golf-style (transverse), so decided to check it out. This afternoon I braved the 105F (43C) temps here in Northern California and took measurements from my Mk1 GTI and my Quantum, using the centerlines of the cam pulley and tensioner for reference and a "Smart Level" to determine the angle.
And the results are...drum roll... :wink:
The Golf is inclined at a 76 degree angle, 14 degrees from vertical, while the Quantum is at 78 degrees, 12 degrees from vertical. This suggests to me that an engine from either source can drop right into a chassis of either type, with no major concerns. Of course, oil pans, manifolds, turbos and lots of other detail parts may need to be changed, but the basic engines are so close as to have no fundamental differences.
Cheers!