The head was definitely warped, I eventually sold the truck to a guy who
pulled the 400ci, and dropped a stroked and bored 454ci (I think actual
displacement was like 510ci) into it and went racing (SCORE- Southern
California Off-road Racing ?). The truck was never the same. I just kept
replacing head gaskets because the head had been milled already and I was
too cheap to buy replacements. I have had 3 different 400ci SB engines
over the years and all but one of them was prone to overheating. I think
it's due to the Siamese cylinders that they use. A good high-volume water
pump and monster radiator will usually fix the situation, but then I was a
single, Air Force Airman with more cars than funds to keep them running (I
had 5 at one time and the First-Shirt told me I had to sell or move at
least three of them).
Kevin Lake
56 GMC Suburban/napco
----------
> From: Nevin <nspeerbrecker@accubite.com>
> To: Sam H Harry <samharry45@juno.com>; oletrucks@autox.team.net
> Subject: Re: [oletrucks] Coolant in oil
> Date: Thursday, May 06, 1999 8:30 AM
>
> Kevin, Sounds right to me. But if your replacing gaskets as often as that
get
> the head milled it may have overheated and warped it.
> -nevin
> 53 3100 350/350
>
>
>
> Kevin Lake wrote:
>
> > Sorry, but either that or you were going through some very deep mud
> > puddles. If you were in a deep enough mud puddle, you may have taken
some
> > water in through the seals. I would change the oil ASAP and let it
> > run/drive it a little, maybe a 1/2 hour (you don't want to run too
long),
> > then check your oil again. If you had a lot of water in it, there may
> > still be a little in the oil after this. You say that it runs hot.
How
> > hot does it run? My guess it that you are looking at a new headgasket.
I
> > had a SB 400ci in an 78 K-10 SWB that had similar problems. I think I
put
> > 3 or four gasket sets in that truck in about 3 years. Good luck with
it.
> >
> > Kevin Lake
> > 56 GMC Suburban/napco
> >
> > ----------
> > > From: Sam H Harry <samharry45@juno.com>
> > > To: oletrucks@autox.team.net
> > > Subject: [oletrucks] Coolant in oil
> > > Date: Thursday, May 06, 1999 7:11 AM
> > >
> > > I've got a question that isn't limited to ol' trucks. I went puddle
> > > hopping in my '84 K2500 Burban the other night. The next day I
checked
> > > my oil and there was quite a bit of water in it. It turned the oil a
> > > sort of off tan color. I'm praying that I didn't crack or warp a
head,
> > > but what color does antifreeze turn oil? I just got my engine bored
> > > (it's .060 over now), with extremely high compression heads (53cc to
be
> > > exact), and a street/ strip cam, so that sucker runs hot. I changed
my
> > > oild this morning, and drove it some. It doesn't look like the water
is
> > > back in the oil, but it is very thin. Please tell me I didn't screw
it
> > > up...
> > >
> > > Sam
> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > > "I have opinions of my own - strong opinions -
> > > but I don't always agree with them."
> > >
> > > oletrucks is devoted to Chevy and GM trucks built between 1941 and
1959
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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