Chris I understand what you are saying about building a smaller engine with bigger internals ( the engineer said he would be happy with this if he doesn't know as it is what is visable that counts)
I even viewed this as an option but when you start pulling down 2 or more engines to build one the money starts to add up!
But if ppl have got the money I say go for it as I too would like to see this done!

As for the other bloke( i think mr_nizmo4)
if you want to build an engine with all bolt on accesories and not be different i say go for it! But if you start adding aftermarket computers this will still bring up the cost!

As for a series not being up for it i have never seen one brake a block or rods or even crank! I have seen them spit head gaskets out the side! ( so o-ring it) and I have seen boost blow out the gaskets on the carbie and spray fuel out this causeing the engine to lean out and crack the rings because they got to hot!( so box the carbie to fix this or pressurise the carbie to take boost, we glued the carbies together with fuel proof glue we even tried fuel proof rubber for the carbi gaskets and this stood up to the job!)
If you want fuel injection make it or get a factory a series efi manifold!
If this is done ( as i am doing ) with a aftermarket computer it can be tuned to run with no problems!

Might i say we have run up to 32 psi boost with the carbie setup with no problems!
But like any engine sustained high boost will cause heat and even a factory turbo with bolt on accesories can't with stand this!

Like I said I don't claim this to be the best engine but there is no way you can say any other is better stength wise! unless you are talking 3 main cap A10 engines! these would just be asking for trouble!