Engine conversion advice....which one?

[bumface3]

Looks like i could be going down the S54 M3 lump route, will know more in the next few months.

[bumface3]

Reviving this again as its nearly that time........so i could put an oldschool M30 3.5 in with 745 turbo manifold and turbo it......but its old tech and heavy......next one would be M50 with turbo.

Was thinking about the newer 335i engine but too modern for the car?

[Jeroen]

Just keep the bonnet closed and enjoy the horses haha

Relatively simple and affordable: M50 with a supercharger!

[bumface3]

Lol......worse than a woman making this decision.....do i go oldschool in keeping with the car.....or go modernish.

Would like 500bhp if possible.....prefer the turbos over the chargers.

Gotta make the choice in the next few weeks so mock up can start.

So many options when you have a blank canvas starting point......what would be the engine you guys would put in right now if given the choice?