Originally Posted by
RWD_cossie_wil
Where is the weak link in Making a yb rev? With stronger rods, pistons etc, what stops one being revved to say 9k? Would solid lifters be good enough, or would you need to go one piece valves as well?
Why is the question, the natural max power on a cossie is between 6.5k to 7.5k to make it rev any more will ruin the low end TQ.
Mark