Paul,
The simple answer is, there is no difference; at least the blocks all
started out the same. The story is that the HiPo blocks were hand picked for
cylinder wall thickness, etc. The difference is in the machining of the
blocks; bigger main caps, screw-in oil galley plugs, etc. Here's a link to
rundown of the HiPo block's unique features.
http://members.tripod.com/lyc_42/fordv8/hipo/hipo.htm
Bob Palmer
rpalmer@ucsd.edu
rpalmer@brobeck.com
-----Original Message-----
From: owner-tigers@autox.team.net [mailto:owner-tigers@autox.team.net]On
Behalf Of ZUKPJ86@aol.com
Sent: Friday, October 11, 2002 3:41 AM
To: tigers@autox.team.net
Subject: Surfire way to tell a 289 HP block
Hi all,
Can anybody recommend a surfire way to tell a bare 289 HP block
from a standard 289?. What are the differences?
It seems Tom Monroe's "How to rebuild a small block Ford" lists the same
casting numbers for both.
Thanks.....Paul (now at the restoration point of no return)
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