Internal differences between Bosch and Gems engines


Well-known member
Jan 23, 2011
Are there internal differences between the GEMS and Bosch 4.6 short block? Are internal parts such as the crankshaft, pistons, and rods interchangeable?


Well-known member
It's obviously doable, but how much work is it to install a GEMS 4.6 in my 4.0 Disco 2? (I think I have a good one to use). Can I install the CPS bracket from the Bosch? Then just the intake manifold? Also, what about ECU settings?