Yes it is an iron 4 bolt Block, ARP studs top/bottom, 6 stage Auto-Verdi Dry sump pump, McLaren Structural dry sump pan, (well worked) ZL1 alloy heads, Forged 4.25" steel crank, Crower rods, Forged pistons 12.5:1, Howards Roller Cam, Crane roller lifters/rockers with a stud girdle, I'm running...