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340 temp #1267974 07/14/12 11:16 PM 07/14/12 11:16 PM
Joined: Sep 2005 Posts: 122 Huntertown, IN U.S.A abodyfan OP member
abodyfan OP member Joined: Sep 2005 Posts: 122 Huntertown, IN U.S.A	I recently found that my factory guage was 35-40 degrees off. My mechanical gauge shows 190-215 degrees. My question is does this seem right? Still to high? The engine is 350-400 horse. I'm using a champion 22in. 3 core radiator with a 17in fan with shroud. Thanks for your help. 1971 Dodge Demon 340 4-speed 1970 Plymouth Duster FM3 340 727 1968 Dodge Dart GT Convertible

Re: 340 temp [Re: abodyfan] #1267975 07/15/12 12:31 AM 07/15/12 12:31 AM
Joined: Jan 2003 Posts: 27,471 So Cal autoxcuda Too Many Posts
autoxcuda Too Many Posts Joined: Jan 2003 Posts: 27,471 So Cal	Quote: I recently found that my factory guage was 35-40 degrees off. My mechanical gauge shows 190-215 degrees. My question is does this seem right? Still to high? The engine is 350-400 horse. I'm using a champion 22in. 3 core radiator with a 17in fan with shroud. Thanks for your help. Are you using a new temp sending unit with you factory gauge? Try an old original unit. I've heard some of the units have the incorrect resistance. I've got a 22 Champion in my 425-450 HP 416 stroker motor. And it's at 160-180. And it doesn't have a shroud yet. If it idles for quite a while the lack of front airflow will get it up to 200-220.

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