The 235 rods are generally thought to be good to 5200 rpm max. I have cruised at 3400 rpm with the 411s out back (depending on the tires ), generally shift max 5500-5700 rpm at the track, although I have gone as high as 6K at the drag strip on a very few occasion (did not make much difference performance wise as the head simply runs out of steam I think at around 5300 rpm and maybe not even that deep. but I have not done that for quite a few years, too hard on the parts). The 261 rods presumably would go a little higher but the weak link is that funky split small end. But I think the others are right, 3000 for crusisng, 4800 shift max are nice safe numbers.
Last edited by mdonohue05; 12/13/13 07:12 PM.
