Disreguard the last message. I always mess up when I
try to do things from memory. I found the article.
It uses an Olds 425 Crank, Big Block Chevy rods and
the diesel block is bored out to 4.185. This give a
total of 440 cid.
--- Joseph Brancheck <jbrancheck@yahoo.com> wrote:
> I've seen the site also. Can't find it anymore.
> There were no Chevy parts used. An Olds 430 CID
> crank
> was put in it and and because the cylinder walls
> were
> thicker, it was bored out (alot). It used all
> oldsmobile parts. From what I've read, The Olds gas
> block isn't as durable as the hard core guys would
> like, so they use the diesel block and convert to
> gas.
> I saw an article in an engine magazine a while
> back.
> The block required alot of machine work but used off
> the shelf and parts along with a junkyard crank.
>
> --- GremlinGTs@aol.com wrote:
> > You know, building a bigger motor for our old
> > trucks would be cool, but
> > we can't all afford a big block Rat. While reading
> > thru an Oldsmobile Diesel
> > motor website, the guy owning the site said that
> > while it IS a 350 block, it
> > isn't a TRUE 350 block, and that it has MUCH
> thicker
> > cylinder walls,
> > otherwise the compression a diesel has would have
> > blown out the thin cylinder
> > walls of the gas block really soon. He said you
> can
> > safely bore it out to
> > 427, or higher if the block has a special scan
> done
> > to insure no flaws. But
> > the diesel block could be converted to a much
> bigger
> > cubic inch motor
> > internally while externally remaining the size of
> a
> > 350 , and using many
> > standard Chevy parts ! I don't know if this is
> > possible or not, maybe some of
> > you posters who had diesel mechanic friends who
> know
> > about this motor can
> > verify the wall thickness. But that would be ONE
> use
> > for this boat-anchor
> > motor ( as a diesel ), to convert it to a simply
> > ASTOUNDING small-block
> > big-inch honker. If anyone is interested, I'll dig
> > up the website I found a
> > few days ago.
> >
> > Jerry in Virginia
> > '55 TF Suburban
> > oletrucks is devoted to Chevy and GM trucks built
> > between 1941 and 1959
>
>
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