An acquaintance recently converted his '70 GTO from a thermal clutch fan to a flex fan to help with an overheating problem he was having when stopped or moving slowly in traffic, and it worked.
However, with a flex fan it's critical that the blades be examined on a regular basis. I had a flex fan with stainless steel blades installed on a V-6 daily driver and around 50K miles one blade broke off (fortunately causing no damage) and several others were badly fatigued and cracked around the rivets. Another acquaintance had the flex fan on his '69 Camaro SS 396 throw a blade just *seconds* after he'd been under the hood making some engine adjustments. Truly a close call. My preference is a 7-blade OEM-style fan with a thermal clutch and fan shroud for a car that gets driven often. Any overheating problems I've had in the past have been traced to problems other than the fan. Brad O. > I am re-doing my 67 Chevelle SS cooling system, i.e., either recoring the > radiator (original Harrison=note: I assume Harrison was the original rads in > 60's Chevelles ?), or aluminum. > Previous owner had a flex fan with shroud. Most people I talk with say to go > with thermal clutch fan, with 7 blade fan and shroud. > What is your opinion ? > Thanks, > Ken McD... ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
