well i know that people running the power engineering 1.9 cvh engines ( called the system 2) with fith injectors were easily runnin between 240 and 250bhp. Also the ones running management were kicking 300+ and correct me if i am wrong but i dont know anyone who has blown a system 2 power engineering engine. Oh there was one i know of but he was running 315bhp and then put nos through it and admits to abusing the nos and that caused the engine failure. All the power engines came balanced hence them being so reliable and i know of people running em without a problem for years now (one has had for 7 years and another for 9). If the engine is built properly and using the right components trust me it can do you justice. Speak to ferriday engineering he has been doing this conversion for years and has not experienced engine failure due to components or block.