The Astra OPC was a limit run of cars (3000) that Opel produced for homologation into F2 ralleying. The engines were reworked to get more BHP,These were given the engine code X20XER. We have a number of engine kits available that can be built into Mk4 Astra's 2.0 16V that once remapped with the OPC program will be the same spec and power as these OPC originals @ 165 BHP. Alternativly the engine kits can be purchased for Vectra, kit cars or what ever (one has been installed a Sunbeam rally car on throttle bodies)
Recast Holden/OPC cylinder head with valves.
OPC Exhaust & Inlet camshafts
OPC Mahle forged high compression pistons
Recast Holden/OPC high yield steel crankshaft
New X20XER block complete with oil pump & oil cooler take off
OPC engine MAP
4 Branch manifold
has any one got any spec fot one of these engines?
can you but x20xer parts from vauxhall?