For sale: Ls7 freshly rebuild, break in time only. Compstar 4" crankshaft, Compstar H beam rods, Mahle Powerpak, Ported heads, Ferrea valves, Comp Cams springs and retainers, Arp main and head bolts, 10.8:1 compression. Also comes with Fast LSXR manifold. $15,000 or best offer.