300 degree COOLANT

[Joe Boucher]

There is a GM performance book availble through the parts counters that details
exactly how to drill these holes.  It would be well worth the money to buy the book,
to save yourself a bunch of headaches.

Try: http://www.dsu.nodak.edu/~mberg/carpage.shtml for a brief Evans Cooling System
explanation and phone #.

Joe Boucher
'70 RS/SS Camaro  '81 TBI Suburban

> From: bearbvd at sni.net (Greg Hermann)
> Date: Sun, 11 Oct 1998 21:23:45 -0600
> Subject: Re: 300 degree COOLANT
>
> >Jake Sternberg wrote:
> >>
> >> has anyone heard of a special type of coolant which
> >> boils at 300 degrees F instead of 212-250 degrees?
> >>
> >> I have a 400CI chevy smallblock with heads from a
> >> different engine, which don't have steamholes.. so
> >> I need to run this stuff.  Any information would be
> >> appreciated.
> >>
> >> thanks,
> >> -Jake
> >It wouldn't be cheating to drill some steam holes in your heads.  I know
> >a guy that ran without them and only had trouble with overheating at
> >idle, and low speeds. But it's easy work with a drill and head gasket.
> >Shannen
>
> Also, lots of NASCAR engine prep guys drill steam holes in blocks with
> siamesed bore cores. Steam and or air will create a hot spot, distortion,
> preignition, etc. Not a good plan to give it even a fighting chance to have
> a place to hide.
>
> Regards, Greg.