Possible - but for many of the replicas the boss motor is too wide, and wont fit into the engine bay. The car looks nice, but there are a few things that dont look quite right to me, but... very nice all the same. ← Ive been looking at buying a kit off DRB and the BOSS motor fits into their chassis. An old bloke I work with is building a MG replica with MX5 driveline and suspension. The motor must be under five years old, Australian complianced otherwise it doesnt meet ADRs and so will not be passed by an engineer. I think if they use a motor from a half cut from Japan they have to get it emmissions tested before it can be passed by an engineer. In saying this there will not be much choise but the BOSS motor for the Cobras in the near future. I seen a Cobra replica with an LS1 in it at a car show not long ago but that's just WRONG! Off the topic abit sorry