I picked up an M42 as part of the sale of my beloved '98 e36 M3 - running strong after 340,000 miles
Am swapping it into my new project - total restoration of '76 2002
Supposedly 120K on the engine so I'm taking advantage of its being on a stand to do some house keeping
Timing chain, guides, gaskets and profile gaskets all around, including head gasket, water pump, thermostat
Lots of stuff to make sure it runs for a while longer plus some mods to help it run better
Anyway, was told this was a '92
Ordering the timing chain guides, I found that the '92 doesn't have the timing chain deflection rail like I have on my engine
Instead, it has a deflection wheel
Real OEM shows the deflection rail starting 9/93, so I'm thinking my M42 production date must be at least 9/93
Block number is 103034
Any idea how I can find out what I've got??