Hy glennj3, the engine is definitely newer than your truck, there has been an aftermarket crossmember installed to intercept the newer engines mounts (one side not done correctly at all with no rubber insulator). To remove the engine, I would remove the transmission from it, you shouldn't have to remove the intake manifold, but definitely the fan. Your truck is far from stock as far as the engine is concerned, many more pictures of the engine/chassis would help us spot any potential problems with the engine removal, hope that helps.
