According to the TM-Developments spec on a forged engine they build you will need All engines stripped and thoroughly chemically cleaned. Block rebored, crosshatch honed. Forged low comp pistons, 74.5/75mm, forged rods. Crank reground (if needed) with all new bearings. Head stripped and cleaned, valves re seated, new valve stem seals, New Head Bolts. New Toyota oil pump, new water pump, new cam belt and tensioner kit, new oil sender switch, new thermostat. All new gaskets and oil seals. Metal head gasket 1.2/2mm Other extra options is Ported cylinder head Lightened balanced and knife edged crankshaft Billet cams Baffled sump Cruise valve springs Power Enterprise Cam belt ARP Head Bolts As for turbo kits do a bit of research on the td05's they will easily get you 300bhp http://www.tm-developments.com/index.php?m...products_id=415 Hope this helps