Brian Furgalus wrote:
>
> I'm curious... what models/years of Olds/Buick/Pontiac cars did the 215
> come out of?
61-63 Olds F85, Buick special, Pontiac Tempest. John
> Rick Morrison wrote:
> >
> > Nope, the original 215 cci engine was designed by the folks at the Buick
> > division, but with corporate understanding the engine would be utilized
> > by other divisions. (ie Olds and Pontiac)
> > The main reason the "hot rodders" prefered the olds engine was it had an
> > extra head bolt at each cylinder (6 bolts per hole, vs 5 on the
> > Buick/pontiac version) The stud boss was cast into all blocks - it is at
> > the 12 o'clock position when viewing the block from the top-but was only
> > bored and tapped for the Olds versions, as the Oldsmobile folks felt that
> > with the turbocharger, the possibility of head lift was increased.
> > The Olds version was the turgbocharged engine. Pontiac, only reluctantly
> > offered the engine, as they were in the process of developing in-house
> > their own small displacement V8, and really prefered to wait it out.
> > As for the Olds version "breathing" better, that's really problematical.
> > Compared to the 4100 series Buick engines, yes the F-85 did, whether due
> > to some kind of magic by the Olds head designers or pure luck is open to
> > debate. However, the later 4300 series Buick engines, 1963 with 4bbl
> > Rochester carb, high compression and bigger valves, more than held it's
> > own on the flow bench, and because of the larger valve sizes, is more
> > receptive to head flow improvements.
> >
> > Just my $.02 worth
> >
> > Rick Morrison
> > 72 MGBGT
> > 74 Midget
> >
> > On Tue, 07 Jul 1998 07:27:57 -0500 ccrobins <ccrobins@ktc.com> writes:
> > >Hi Paul,
> > >
> > > Thinking back to the original 215 V8.....Don't remember for sure but
> > >I
> > >seem to recall that the original design came out of the Oldsmobile
> > >division of GM. The Olds F-85 had the same 215 block with different
> > >heads - heads that breathed better, too. That's why hot rodders chose
> > >the Olds version if space wasn't a problem. The Buick version was
> > >narrower, so that's why it went into the MGB - it would fit. I seem
> > >to
> > >recall that there was a Pontiac version of the 215 V8 too. Lessee,
> > >which one of them had the turbocharger with the waste gate?
> > >
> > > Charley Robinson
> > > `69 B
> > >
> > >
> > >
|