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Home » Public Forums » GMCnet » Doug Thorley Headers D755Y vs 355YC (Can both headers be used on a 455?)
Re: [GMCnet] Doug Thorley Headers D755Y vs 355YC [message #325941 is a reply to message #325905] Sun, 12 November 2017 02:05 Go to previous messageGo to previous message
John Heslinga   Canada
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma:
Senior Member
Here is the strategy I used to protect the Speedometer cable from the heat of the headers. It can be used with both types of headers, and seems to have protected my cable well. It works by both being a heat shield and using convection airflow through the tubing. Check the entire album as it describes the strategy.
http://www.gmcmhphotos.com/photos/g7112-speedometer-cable-heat-protection.html

Sample photo
[url=http://www.gmcmhphotos.com/photos/speedometer-cable-heat-protection/p63940-governor-end-of-speedometer-cable.html[/url]
http://www.gmcmhphotos.com/photos/data/7112/DSCF2863.JPG

John and Cathie Heslinga 1974 Canyonlands 260 455, Manny tranny and 1 ton, 3:70 LS, Red Seal Journeyman, DTE, BEd. MEd. Edmonton, Alberta

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