cwhubb
Well-Known Member
does the max rpm of an engine change if its stroked, and if so does the redline move higher or lower than stock?
When I have the opportunity to put cars on a dyno, I start with an easy pull to about 4500 rpm. Then look at the HP & torque numbers. I increase in 500 rpm increments until I find max HP & torque. I determine that redline is about 500 rpm above peak HP.
the kit I really like is the 496 from 440 source, I'm trying to research on my own if 496 is fussier than a smaller ci kit. it looks like their bottom end stuff is bullet proof, but that could just be slick marketing, been suckered before and I've become cynical in my old age lolGotta know what's in the engine.....ie, rods, crank, pistons and weight of it all and on and on and on. The main thing is knowing what you have for the bottom end of the engine.
Stock bottom end of the 383's are pretty stout. I built a stock bottom end 67 383 in 69 that reached peak HP at 6800 rpm. I shifted at 7000 at the track. I usually had to petal about 60 feet from the line to stay at 7000. One night the car in the other lane was even if not ahead of me at 60 foot out so I held it on the floor. Tachometer said 8500 when I crossed the line. It didn't blow. Bottom end although stock was balanced and blue printed. Maybe that was why it stuck together .
I'm sure that was a significant safety improvement.Bottom end although stock was balanced and blue printed. Maybe that was why it stuck together .
Short answer...yes, it does....sort of.does the max rpm of an engine change if its stroked, and if so does the redline move higher or lower than stock?
does the max rpm of an engine change if its stroked, and if so does the redline move higher or lower than stock?