Its a forged 5e. Bought of pistonheads. Someone owned called sam_glanz? Says its only rebuily 900 miles ago. And he built himself. Here is the spec engine wise. it honestly pours smoke out on tickover big time. Also the oil catch can was full of gunk and had to be cleaned. Also has smoke coming out of the oil cap on rocker cover. ENGINE (900 miles) Wossner Forged Pistons 75mm Wossner piston rings PEC Forged Rods (5e) 5E Block Skimmed, honed, crack tested & Notched for Rods, chemically cleaned 5E crank, polished Custom Race Spec Rocker Cover With twin breathers NGK Iridium Spark plugs ARP head bolt ARP rod bolts ACL Conrod Bearings ACL Main Bearings Sard Low Temp Thermostat ACT Paddle Clutch and pressure plate (4efte) Assaco lightened and balanced Flywheel (4efte)