Thanks Ron I'm looking at a 1275 as we speak for my other Sprite it will be
cool to see these differences. I also have a 1275 in Pinky that I'll look
at.
Lin
On Thu, Oct 1, 2009 at 8:49 PM, Ron Soave <soavero@yahoo.com> wrote:
> --- On Thu, 10/1/09, Linda Grunthaner <grunthaner@gmail.com> wrote:
> > What is a thick block I never heard of that term before.
>
> Early 1275s had a thinner flange around the oil pan mounting surface and
> different casting than the later ones. The later ones are called "thick"
> blocks. The thin ones are supposedly weaker, but I know of 2 full race
> motors that are thin flange, one of which is now in it's 6th season with its
> 2nd owner without any incident whatsoever in way.
>
> Ron
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