Description:

Completely rebuilt 5.3L LS Gen III long block. Machine work done professionally. Bored .030 over. Rings gapped for boost .027/.029. Main and rod bearings clearenced for turbo .0020/.0030. Rotating assembly balanced and valve job on heads. Gen 4 connecting rods, Silv-O-Lite pistons, molly rings, PAC springs, rocker arm trunnion upgrade,  LS7 lifters, GM lifter trays, Elgin Sloppy Stage 2 Cam, BTR pushrods, BTR multi-layer head gaskets. This has the 6.0L long crank for the 4L80e, TH400, TH350, no adapter needed.  0 miles. Have receipts.