Listers,
I received the following from Tom Ballou in Texas, who is no longer a member
of this list. If any of you have comments on it, I would appreciate your
sending them to Tom, with a copy to this list. Thanks.
Dick Barker
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Subj: Cylinder heads
Date: 7/22/99 2:57:51 PM Pacific Daylight Time
From: tbballou@SHERWIN.RMC.com (Ballou, Tom)
To: TigerCoupe@aol.com ('TigerCoupe@aol.com')
Dick, forgot to ask you the other night whether you had seen any cars at
SUNI III that had aluminum heads installed, particularly TrickFlow heads.
Someone suggested to me that I might have a clearance problem at the top
rear of the engine. I called TrickFlow and was told their heads are .300
thicker than stock heads measured from the deck surface to the rocker
cover rail (my crude measurement was close to 3/8", so that isn't far off).
They claim their exhaust ports are located in the stock location relative to
the engine and each other, so header clearance shouldn't be a problem. I
think the aluminum valve covers are maybe .100 thicker at the corners than
the stock stamped covers. That's a total of .400 or so. I think I could
always get my fingers behind the valve covers and could actually get the
stock ones off without moving the engine, so maybe there isn't a real
problem. My recollections about the Edlebrock heads is that they are
reputed to be about .500 thicker (don't really care since I bought a set of
TrickFlows, but if they will fit, the TFS certainly should). Any knowledge
here?
Has there been any traffic in the email circuit about these heads?
Tom
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