rod and main clearances 401

[nailT]

On the quick, does anyone know what the rod and main clearances should be on a 401?. An old parts book I have says .001 to .0019. Seems tight to me.

 

[rcull]

According to the '66 manual, which is the information presented here, its even tighter!
http://www.teambuick.com/reference/nailhead_engine_specs.html

Basically, you should torque the crank in, then give it a spin, it should turn freely.

 

[nailT]

I saw that after I posted. Seems to me that a .000" clearance is for most perposes infnitly tight. :clonk: