Dinan To Squeeze 638 HP V10 Into BMW M3, Laugh ManicallyLike mad scientists splicing bits and pieces of animal carcasses together to create something unholy, Dinan is prepping a BMW M3 equipped with a 638 HP version of the BMW V10. The heart of this ludicrous M3 will be a 5.7 liter bored-and-stroked version of the 5.0-liter DOHC 40-valve V10 found in the BMW M5 and BMW M6. This engine swap is not unprecedented, as Hamann, Hartge and AC Schnitzer have done it before, but this will be the first time major engine modification will be involved. Look for this manic M3 to break sound barriers in the near future. [Modified L&E] Photography credit: 0-60 Magazine