I'll detail most of the specs, serious buyers can call for more information have receipts for all components and should be able to chase up most of the build tolerances at request bottom head: Rb30 A8 block 7.8:1 comp ratio chem cleaned crack tested line bored linished crank balanced blueprinted tolerances deburred internals of block argo forged rods, arp 200 bolts arias 20 thou over forged pistons cometic gasket high energy sump gtr n1 pump crank has snout welded to suit gtr pump (jun crank collar) crank redrilled and grub screwed arp head studs acl race series bearings head: surfaced reseated 3 angle cut valve seats crow cam (similar to 818b) this is a billet cam no machined lifter housing welded down centre to prevent cracking chemically cleaned can compression test runs 80psi oil pressure cold 40psi oil pressure at operating temp never over heated hasn't seen more than 20psi of boost it has 4,000km's on it and it made 168rwkw on 7psi and 260rwkw on 20psi if you require anymore information please contact me Reason for sale is im parting the car out Looking for $6000 ono can work out transport for buyer don't mind delivering around victoria Regards Chris

engine is sold click the link below for any other parts you might be interested in

Thanks again Chris!