Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - To Drill or Not To Drill Thermostat
View Single Post
  #9 (permalink)  
Old 01-02-2011, 08:08 PM
larryf larryf is offline
Registered User
Join Date: Sep 2010
Location: wi
Posts: 57
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by Sweet-34
Can someone enlighten me as to drill or not to drill holes in the 180 degree thermostat on a 327 Chevy Engine. Been running a 195 degree thermostat and it runs too hot. I'm running a manifold fan sensor that turns on my fan at 200 degrees and cools to 185 before shutting off. Most people tell me to drill 3 small holes in the stat before installing.

If so......what size holes? Also, what is the benefit of doing this?

Thank you
as was suggested,a good fan shroud forces air to be pulled thru radiator.larry nice rod
Reply With Quote