For future DIYers ,A major complication when I replaced mine was that I stripped one of the intake hex bolts ,took me an extra 2 hrs just to remove stripped bolt and find a replacement .The job itself can be done in that time.Clean out the hex bolts with degreaser and pressured water first before turning any wrenches then blow off with compressed air ,youll want to have the hex socket all the way down in the bolt.I was able to reuse the intake gasket but this is not always the case.