I recently bought a 5.4 DOHC to build for my other cobra. I just got the new rotating assembly parts in last week. Forged crank, MMR H beams w/2000 bolts, CP pistons, clevite bearings, and speed pro rings. I was loading it up to go to the machine shop allong with a teksid when i realized how much weight difference there was. So i threw them both on the scale. Both had main caps and the rear seal plate. Teksid weighed 90lbs and the 5.4 weighed 210lbs. Im now rethinking my whole build. Thats a crapload of weight for the inches. I think i may scrap this and then put darton MID sleeves in one of the teksid blocks sitting around. Any one need a 5.4??