I was told by a local guy that I could use RE housings with my 13bt and my engine would be able to withstand higher horsepower. I'm going with a big turbo (Borg Warner s366) and I would like to get as much power out of it as possible without doweling.

Am I able to simply swap these housings and use the rest of the block? If not, what else would I need?

I know I'll need the RE manifolds/TB and I would also swap in the TII exhaust sleeves.

Also... I bought a Neukin turbo manifold made for the 13bt, will this still work with the RE housings?

 

Basically, no. The RE housings are actually worse due to the exhaust ports then the S5/S6 housings.

Unless he was really talking about irons. If that is the case, then the RE rear iron is stronger then the S4 rear iron, but you can't use it anyway. You would need all RE irons and manifolds to make it work.