Of course I will have uprated suspension and tires etc, I have all that already this thread is purely for advice on the actual build of the engine, If i dont get 400 bhp straight away thats fine but id like to build the engine to a reliable standard where 400bhp wont be a problem.

So the general assumption is that, the engine itself will handle 400bhp, i just need to be sure to give the engine a good head gasket, new rings so they dont shit themselves and then to gain the rest of the power its just cams, injectors and mapping which can be done anytime as it doesnt require a major tear down.

What can i do to the cylinder walls to give them extra life without a rebore as i dont think i need one.