I took my 1/2 inch head bolts and machined the threads down to 7/16, worked fine. Frank Swygert wrote: >You can, but it's really unnecessary. You can center the head well enough on the six without larger bolts -- since it's flat on top the head won't slide over while you tighten the bolts. You only have to run two sleeves if you go that route, one on each end. Or just use two larger head bolts, one each end. > >-------------- >Date: Tue, 21 Oct 2008 18:49:31 -0400 >From: Brien Tourville <hh7x@xxxxxxxxxxxxx> > >Can I ream out the 258 skinny head bolt holes to >the 1/2" 4.0 size without pulling the block ? > >Running head bolt sleeves doesn't seem American. > > > _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list