The Original 355 took a hit.

[rr]

I was mostly just wondering. GM recommends a head gasket with
a stainless steel fire ring to prevent galvanic action. I used the stock
head gaskets for this head. They are 0.051" thick. This reduces the
compression ratio also. I remember the heavy stainless ring around
each chamber. Back in '90 the part number was #14088948. This
is supposed to be stock Vette gaskets for that year.

BobR.

Bruce Plecan wrote:

> Just old generic Felpros (circa 1992).
> I tend to stay with easy to find replacements.  Thou, I'd appreciate any
> ideas you have.
> Bruce
>
> > Bruce,
> > Just wondering, what/whose head gaskets were used on this engine?
> > BobR.
> > Bruce Plecan wrote:
> > > From: "Dave Zug" <dzug at delanet.com>
> > > > We can rebuilt it... we have the technology..
> > > > Better, Stronger, Faster.
>  > At this stage, it's just seeing how far it will go.
> > > Also, bare in mind the lil guys used the FBod for parts chasing.
> > > > The standard abrasives doc (on street level head portintg) is a nice
> > > > document, if you have not seen it... I can't imagine you have not, but
> on
> > > > the topic of DIY, its directed to others.
> > > > http://www.sa-motorsports.com/diyport.htm
> > > It's almost funny that people make money off of pocket porting.
> > > GM has the shape about right, and if you just clean up the production
> part
> > > of things usually have a decent head.  generally the short side radius
> is
> > > poor just from coring, and little errors in initially locating the
> > > machining.  Taking the sholder of off the valve guide is another quick
> gain.
> > > The trick is really knowing when to stop.
> > > you can do too many  good things and wind up with a lousier then stock
> head.
> > > Gotta repeat after just knocking the edges of off the chambers is a real
> > > winner.
>  > > I'm lookin for "donor" (don't read: donated) parts for the budget 400
> TPI
> > > > project, if anything fell off that aint goin back on .. like those
> heads
> > > ;-)
> > >
> > > These are the first gen D port AL vette ones.
> > > For the money would be hard to beat, thou some of the new iron ones
> sound
> > > like fun.
> > >
> > > Was loooking thru some other heads at a friends shop.  The Edelbrock
> RPMs
> > > seemed to have things well in hand for someone not wanting to get gritty
> > > with grinding.
> > >
> > > > PS (Thanks, I'll stop thrashing my car in 20 degrees now - you may
> have
> > > just
> > > > saved me $4k)
> > >
> > > Just back the timing up a few degrees.
> > > I peeked at some gm S/C MAT tables and they danced the timing around 10
> > > degrees from cold to hot vs Airflow.
> > >
> > > I think, I'm going to use something like
> > >
> > > 50-70dF as being the 0 correction area,
> > > Then 70-90 add 2
> > > 100+ a total of 3
> > > 30-50dF  2 less
> > > single digit to 30s 4 less
> > > there I said it <g>
> > > Bruce
>
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