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would appreciate some help from guys with stock setups.
So my 75 vette has a flex fan set up, with about a 3 inch spacer off the water pump.
I would like to go back to the clutch setup.
I found an ac delco oem clutch replacement and a 6 bladed fan that fits a 75 vette.
I’ve been trying to find pictures of what stock looks like, but is that all I need? Is there any spacer that is stock to the 75 vette?
I also do not have the top shroud, only the bottom shroud, but I do not anticipate cooling issues. I replaced the stock radiator with a aluminum 4 pass. Ever since then the temp has never been above 180ish.
Thanks!
The stock shrouding is one piece. If you only have half, someone befor you cut it in half.
When you install the factory fan, half the fan blade should be into the shrouding to provide proper cooling, ( as well as ALL foam and chin spoiler ).
I'm sure someone has a pic for ya.....
would appreciate some help from guys with stock setups.
So my 75 vette has a flex fan set up, with about a 3 inch spacer off the water pump.
I would like to go back to the clutch setup.
I found an ac delco oem clutch replacement and a 6 bladed fan that fits a 75 vette.
I’ve been trying to find pictures of what stock looks like, but is that all I need? Is there any spacer that is stock to the 75 vette?
I also do not have the top shroud, only the bottom shroud, but I do not anticipate cooling issues. I replaced the stock radiator with a aluminum 4 pass. Ever since then the temp has never been above 180ish.
Thanks!
You might want to look at some Hayden fans too. Quality clutch fans! Have one on my 65 455 Gto and is 100% better than my flex fan was! Sounds like a C130 taking off but really cools ! Wilcar
The stock shrouding is one piece. If you only have half, someone befor you cut it in half.
When you install the factory fan, half the fan blade should be into the shrouding to provide proper cooling, ( as well as ALL foam and chin spoiler ).
I'm sure someone has a pic for ya.....
Seems like I have no shroud at all then! I just have a piece of plastic that spans from ontop of the front crossmember to the bumper. It use to having overheating issues, obviously from the lack of ducting, but the large aluminum radiator fixed it. Been on 5 years now and have had zero issues.
the spacers on the flex fan put it about one inch away from the radiator. I know the stock setup won’t be as near. I’d rather not use any spacers
You might want to look at some Hayden fans too. Quality clutch fans! Have one on my 65 455 Gto and is 100% better than my flex fan was! Sounds like a C130 taking off but really cools ! Wilcar
Thanks I’ll look into it! They seem to be a little cheaper than ac delco as well
The Hayden Thermo clutch is a good piece. That...and the fan is all you need. I have a 5 blade and thermo clutch on my 72' 406 with a stock rad and W/P......190 temps in the South Texas summer.....
The original fan setup for your '75 had no spacer(s). All you need is the stock fan clutch. The OEM clutch assembly included a shaft which projected the fan blade and fan clutch the proper distance into the radiator shroud. See below: Red arrow = attachment to water pump Green arrow = attachement to fan blade Pink arrow = front of car
Fan clutch and fan mounting
You did not mention if your car has A/C or not. The correct fan for an A/C car has 7 blades, for a non-A/C car it has 5 blades.
good stuff and resources.. i am curious..
it says in PDF 2 piece until mid 76? but replacement in vendor list is one piece for 75? OP got any pics? Is yours one or 2?
and where can i purchase the ncrs info like that pdf has? it will be on my Christmas list
thank you! looks like my 78-79 gets a non color version ? LOL.. on the list..wondering which is right on the OP shroud..one or 2 piece
OP's car is a 1975. For 1975, the radiator shroud is one piece. The extension is one piece. They are assembled together as depicted in the pic below: Red dot = Fan Shroud. Green dot = Fan Shroud Extension
In the link provided earlier, Top Flight P/N's 51798 (shroud) and 51799 (extension) represent the original pieces.. I cannot vouch for the accuracy of their reproductions, though. P/N 29040 is incorrect for a 1975 https://www.topflightautomotive.com/...direction=desc
mine is on order.. great pics..in manual thank you!
ok so forgive my ignorance.. but it says in the PDF 2 for 75? or are they counting the extension which was still early 76?
Thanks for the help guys! Thanks 73&75 for the pictures, I wanted to make sure that’s all I needed before spending $100 and have to deal with returns. I’ll go with the Hayden as well, seems to be the popular vote. I’ll go to ace hardware to find some hardware that’ll work with it
mine is on order.. great pics..in manual thank you!
ok so forgive my ignorance.. but it says in the PDF 2 for 75? or are they counting the extension which was still early 76?
Correct. They are counting the extension as the second piece.
Where do you live? I have a fan, clutch and shroud. I swapped over to a C5 fan setup. I am south jersey moving to Florida. So if you are anywhere near I95 between Phila and Miami should be doable…. Oh yeah: free.
Where do you live? I have a fan, clutch and shroud. I swapped over to a C5 fan setup. I am south jersey moving to Florida. So if you are anywhere near I95 between Phila and Miami should be doable…. Oh yeah: free.
What fantastic offer from derekderek! We have a GREAT hobby!
75 original fan setup
