I thought dodge deliberately chose the 6.2 vrs: the 6.4 because of stroke to bore ratio, and more importantly keeping the rpm in a safe zone. Keep in mind piston feet per second speed increases with longer stroke, and swinging more reciprocating weight or just same weight faster increases dynamic loads imposed on all internals. I personally would not seek more RPM unless cracking open short block and fortifying all reciprocating internals. without going inside the engine my efforts would be spent on cool dense charge with resonable added boost paired with fuel quality and a reputable tuner. Most people with these cars that have gone this route don’t have issues, many with impressive results that last. 7,600-7,800 spins I think is like spinning a Russian roulette revolver, just a mater of time before it comes apart. Most likely very soon even if every thing else is spot on. This is only the bottom end, the top end is not up to the chore as others also have hinted at. I think it’s perfectly fine if you want to take it to the limits of let’s see what this bitch can take if that’s your bag. There are a few here and on the other site that don’t mind trying and breaking. I would like to know how long and what exactly is the breaking point of the part/parts that yield and at what RPM. Carry on let the revs begin.
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