To begin I'll just give a summary of what I'm looking to do, and then explain further for those who are looking for more information. The goal of the engine is having a forced induction motor capable of revving to higher RPMs (more power at the higher RPMs with FI) while still being somewhat dependable. Thinking inline-6 for inherent engine balance (Think BMW S52/S54), or going V8 (GM LS1 or LS3) for more displacement which would bring more balancing issues into play (as we all know there's no replacement for displacement :tongue2:). To do this in summary, shorten rod length, increase component strength, raise RPM limit, apply forced induction to correct compression. Ignore cylinder head work for now, I will get to that if this method is logical. Firstly, replacing all internals (crank, pistons, con rods etc) to forged 4340 steel (maybe a billet crankshaft?), with 8740 chromoly steel rod bolts that way they are able to handle a much more demanding load. Then, my idea is to decrease the stroke of the engine by reducing the length of the connecting rods. The reason for decreasing the connecting rod length is to reduce the amount of force put onto the rod bolts occurring during compression and exhaust strokes (along with rod flex during intake and power stroke). By reducing the length, essentially my understanding is I would be able to achieve a higher piston speed because of all the other force factors on the stress v strain curve being reduced, therefore higher RPMs could be sustained. I understand decreasing stroke would alter the compression ratio, and alter the stroke/bore (bore/stroke?) ratio but I would like to figure out if my understanding is true before tackling the rest. Let me know your thoughts! Or if I'm crazy (could be likely). Questions are welcomed, and appreciated. All is theory, measurements are left out. My knowledge of physics is limited, but I do understand a decent amount. This is all based off of some research I've done into motors and my experience working with them.