Most informative post to date Jim. THANKS for the information. I think we now
all know the most important items to talk about when a 289 HiPo is the
subject.
Tony Lang (TtT)
--- On Tue, 8/31/10, Jim <jim@island.net> wrote:
From: Jim <jim@island.net>
Subject: Re: [Tigers] k engines
To: rfraser@bluefrog.com, "'Clyde McLaughlin'" <clydemclaughlin@verizon.net>,
tigers@autox.team.net
Date: Tuesday, August 31, 2010, 11:06 AM
My Tiger had a 6 bolt HiPo in it when I bought it. The only difference in
the head casting was that they had 'pockets' cast in them to hold the valve
springs and they were fitted with screw in studs. The valves were the same
as any other...
Here is a VERY good description of the differences... which aren't many...
http://www.hipomustang.com/images/hipoeng/
Jim
B382000446
.
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Ron Fraser
Sent: August 31, 2010 5:47 AM
To: 'Clyde McLaughlin'; tigers@autox.team.net
Subject: Re: [Tigers] k engines
The 289 HiPo is a combination of specific Ford engine parts with
tighter inspection requirements.
The heads had larger valves, sometimes smaller combustion chambers and screw
in rocker arm studs but I'm not familiar with HiPo cast into the head. I'm
not the expert on HiPo engines but I have not seen that under the valve
cover.
Hipo cast into the head would be an extra cost for the casting
process. If the head did not meet inspection requirements for the HiPo
they would have to be destroyed. I don't believe Ford did that; if the head
did not meet requirements for HiPo engines it was most likely put back into
the std 289 production line.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Clyde McLaughlin
Sent: Monday, August 30, 2010 5:38 PM
To: tigers@autox.team.net
Subject: [Tigers] k engines
The crank should have a small extra counter weight just behind the balancer
inside the timing cover, and the "K" referrs to the engine letter code in
the chassic number of the car, don't believe its on the crank, but maybe
it is...the heads are machined differently for the valve springs, and hi po
is casted on to the head, take off the valve covers its easy to see, Clyde
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