Looking for peoples opinions on rebuilding the 1850, Is there anything to be aware of before i start?
If the engine is already out of the car, I'd definatly do the engine bearings and thrust washers and inspect the bores, maybe deglaze the bores and re-ring the pistons. Inspect the timing chain tensioner while its out. Then if the crank needs a regrind I'd go for balancing as well; maybe a rebore... Its a bit like eating salted peanuts. You can never eat just one.
As regards difficult bits, the crank pulley can be very tight, the water pump can be difficult to remove and the head studs can also be seized. Get back to us if the head is stuck as we have a solution. One other thing we found on an 1850 we worked on last year was that the flywheel had been put on 60 degrees out.