sumwhere around £14k id say lol, my engine cost £5k when first built by special engine services for dale_b then I've added and improved the spec further so near £7k engine, fmic £250, manifold turbo kit ect was £450 now £700 as im going wepr and vf series, £000's on handaling/stopping/structure of the car with cage and struts etc around £800 on fuling/ignition etc depends how much power you want realy, if you want loads then it can alter the cost of a whole project, adds up so quick over 4/5 years