Frank Marrone wrote:
>
> I thought that the only difference between a hi-po block and a regular block
> was that hi-po blocks were hand picked from the lot of production blocks for
> thicker casting (visual?) I though the only difference was a paint mark
> somewhere on the block, bell housing area? Maybe that is just urban legend
> but i'm pretty sure they have the same casting numbers as regular 289
> blocks. I don't think you will be able to tell if it is a hi-po from the
> casting numbers.
>
> Frank
Many more differences, including a specially selected crankshaft that
came out of heat treat with higher strength from a Brinnel hardness
test. Marked orange and sent to HiPo line.
--
Steve Laifman < Find out what is most >
B9472289 < important in your life >
< and don't let it get away!>
<SLaifman@SoCal.RR.com>
<http://www.TigersUnited.com/gallery/SteveLaifman.asp>
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