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- - Fan shroud question! (https://67-72chevytrucks.com/vboard/showthread.php?t=646678)

Harpie

10-16-2014 07:20 PM

Fan shroud question!

Ok I think I got this figured out but I know you guys can help me out. I swapped in a vortec 5.7 in my 71 and am getting everything ready to fire it for the first time in the truck. Dropped my radiator in (4row) and my small block factory fan shroud is not going to work. The fan is just a little big and I think if it had of fit will be past the fan. So if I'm reading everything correctly is the big block shroud thinner and possibly have a bigger opening for the fan? Hope that makes sense lol thanks for any advice in advance.

davepl

10-16-2014 07:22 PM

Re: Fan shroud question!

What's the size of the one you have?

Harpie

10-16-2014 07:27 PM

Re: Fan shroud question!

Fan looks to be 19in and that's right at the shroud opening size. Biggest issue is the thickness of the shroud.

Lee H

10-16-2014 07:44 PM

Re: Fan shroud question!

There's lots of fans available in the 16-18 inch range, check out Derale. The AC fan shroud is a little over 1 inch deeper than a non-AC shroud.

Harpie

10-16-2014 07:49 PM

Re: Fan shroud question!

Ok thank you I'll see about changing the fan.

Undone

10-16-2014 07:56 PM

Re: Fan shroud question!

Quote:

Originally Posted by Lee H (Post 6881776)

There's lots of fans available in the 16-18 inch range, check out Derale. The AC fan shroud is a little over 1 inch deeper than a non-AC shroud.

Thought it was the other way around. Non AC deeper?

FirstOwner69

10-16-2014 08:31 PM

Re: Fan shroud question!

1 Attachment(s)

Quote:

Originally Posted by Undone (Post 6881792)

Thought it was the other way around. Non AC deeper?

I agree. Factory small block non-A/C shroud is 3/4" to 7/8" deeper than the A/C shroud. Here's a pic of them back to back. The A/C shroud is on the right.

FirstOwner69

10-16-2014 08:54 PM

Re: Fan shroud question!

Quote:

Originally Posted by Harpie (Post 6881753)

What water pump are you running? Short, long or from the Vortec engine? Serpentine or V belts? Is the fan from the Vortec engine? If from the Vortec and serpentine, is the fan the right rotation?

Harpie

10-16-2014 08:58 PM

Re: Fan shroud question!

It's the complete power plant motor and trans from donor vehicle. It has the factory serp setup and fan and pump.

Lee H

10-16-2014 09:43 PM

Re: Fan shroud question!

I stand corrected.

FirstOwner69

10-16-2014 10:18 PM

Re: Fan shroud question!

Quote:

Originally Posted by Harpie (Post 6881914)

It's the complete power plant motor and trans from donor vehicle. It has the factory serp setup and fan and pump.

I tried searching the forum for "serpentine fan shroud" and got some results that may help. Give it a try and see what you think. Just check to be sure the thread applies to 67-72 trucks.

Harpie

10-16-2014 10:30 PM

Re: Fan shroud question!

Ill didn't try that wording thanks I'll do that now.

Harpie

10-16-2014 10:37 PM

Re: Fan shroud question!

Well that was what I needed looks like a BB shroud it is. Now to find a good deal on one. Thanks guys for the help!

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