I have 2 complete sd4 engines for sale. Both have 437 alum heads with titaninum valves. Have an additional 2 heads 1 bare and 1 with steel valves. 2 crane cams 2 comp cams all 5 bearing roller cams and bearings. Have isky lifters and comp. Have 4 cranks. 3 3.25 steel cranks and a 3.0 early monza cast crank. 5 intakes 1 is a rare 2bbl intake and the rest is 4bbl. 5 valve covers. 3 sets of jesel rocker arms 1.55, 1.6 and 1.7 ratio. Light weight comp pushrods. Lots of accessories... External oil pumps, water pumps, clutches ect...8000$ obo