@Stan Galat posted:A forged crank with forged pistons and H-rods and heads with dual valve-springs will hold together kissing 7000 RPM from time to time. I try not to spin past 6000.
Sometimes I fail.
I have used a 6500 hard limit for almost 45k. I rebuilt the top end of my 2165, but the case and bottom end are as-delivered from Jake, with the exception of the pressure plate.
My oil pressure is perfect, endplay was still 0.004".