LS1 Specs

[steve ravet]

Joe Boucher wrote:
> 
> Andrew F. Gunnesch wrote:
> >
> > Thanks...  I just found out yesterday that the LS1 PM rods are .400"
> > longer than the old SBC rods.
> >
> > The article that I read indicated that the LT4 used PM rods.  Can
> > anyone verify this fact?
> >
> 
> Yes, they do.  As a M.E. the powered metal rods fascinated me.  The hole
> for the crank is machined then the cap is broken off, not cut.
> 
> How do you precisely break something?  This would also mean that you
> won't have to worry about your rods stretching from an over-rev.

After the rods are pressed, they are scored on the inside of the big
end.  Then they are broken at the mark.  That makes both sides
positively line up, and makes the rod and cap a matched set.  I think I
posted a URL yesterday for a 5 part article on the LS1, all this stuff
is covered in great detail, including problems they had with the oiling
system, etc.  The URL is 
http://www.vettenet.org/ls1-1.html

Check it out, it's a very good read.

--steve



--
Steve Ravet
International Meta Systems
http://www.imes.com
steve at imes.com