Hmmm in the mean time I've read about the double overhead cam being a nightmare to get the timing right... Obviously in the old mini the cam is in the block so timing isn't an issue. I thought the timing wouldn't be touched but if the cams are in the head, could they be knocked by accident say and then throw out the timing? Plus also read that since the block is alluminium and head studs are steel, if the block overheated it could warp and cause a problem when torquing the head back down... Cheers