308S valve clearances

I was told that the valve clearances on the cam card should be reduced .003-.004 if running aluminum heads and setting cold. The idea is that as the alum head heats it expands more than iron so the clearances increase hot.

 

Here's a current discussion on DRR.

http://drr.infopop.cc/eve/ubb.x/a/tpc/f/80760912/m/1911008611


Looks like most are using .003-.006. Just set them cold and then check them hot. Hope this helps.

 

Cool, thanks

 

Bruce
Assuming you mean valve LASH I found mine to .004 looser after a run than in the garage.............IE If you want .022 set them at .018 COLD.