Two piece fan shroud - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gmebey · 11-08-2015, 04:13 PM

After a day of fighting a one piece fan shroud I’m ready for other options.

Does anyone make a nice two piece shroud for 1969 C20 P/U?

Or can I modify my one piece?

**Boog** · 11-08-2015, 04:20 PM

There are 3 or 4 different shrouds for these trucks. You may have the wrong one? Pictures of your problem?

sKnNyPpY · 11-09-2015, 11:26 AM

Did you try removing the fan, inserting it into the shroud and then installing? I also had to trim 1.5" from the bottom of an ac shroud because I have a long water pump.

gmebey · 11-09-2015, 02:30 PM

After my post yesterday I took a more in-depth look at the overall problem.

Since I have a long pump the fan sits further down in the shroud than it shroud, which makes it a pain to do anything with the belts. Plus there is only about 1/4" clearance between the alternator pulley and the shroud.

My guess is over the years this problem was compounded by the various owns of the truck. An engine swap, a bigger radiator and few band aids……. you get the picture.

As a short term solution. In my frustration I took the shroud to my woodshop and had a meeting with the band saw….. now it is a two piece!

Now I need to look for the proper shroud for my application, but I have time.

**Boog** · 11-09-2015, 06:32 PM

I understand your situation completely. Im in the same boat. I did some trimming on mine too. It isnt permanent though. I may go electric.

leftybass209 · 11-09-2015, 07:00 PM

What engine do you have in your truck? I have a SBC with a lwp, fan shroud, and full size clutch fan. You have to lower the shroud and the fan down together, then let you can make it happen. It isn't cut and dry simple, but it isn't hard.

**Boog** · 11-09-2015, 11:53 PM

I think what gmebey is talking about is his fan blades are placed too far into the shroud. The shroud itself is too close too the alternator. Mine is due to the 4 row radiator being so thick. I trimmed my shroud back about 1 1/2" to uncover the fan blades.

gmebey · 11-11-2015, 12:07 PM

My setup is a SBC 350, long pump, 4-core radiator and no AC.

In order to avoid removing the radiator I had to trim about 2” off the bottom of the shroud in the truck to clear the water pump.

I have opted for a short term solution and will either find a better shroud or go electric fan.

Thanks for the help.

11-08-2015, 04:13 PM	#1
gmebey Registered User Join Date: May 2011 Location: Fort Collins, Colorado Posts: 95	Two piece fan shroud After a day of fighting a one piece fan shroud I’m ready for other options. Does anyone make a nice two piece shroud for 1969 C20 P/U? Or can I modify my one piece?

11-08-2015, 04:20 PM	#2
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,513	Re: Two piece fan shroud There are 3 or 4 different shrouds for these trucks. You may have the wrong one? Pictures of your problem? __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

11-09-2015, 11:26 AM	#3
sKnNyPpY Registered User Join Date: Sep 2012 Location: Columbia, SC Posts: 549	Re: Two piece fan shroud Did you try removing the fan, inserting it into the shroud and then installing? I also had to trim 1.5" from the bottom of an ac shroud because I have a long water pump. __________________ Life is too long to go slow... 71 GMC 1500 Super Custom LWB 350/350 AC(replaced w/vintage air)/PS/PB 2.5 CPP Spindle, 1" CPP Drop Spring, CPP Front and Rear Sway Bars/DJM Flip, new General Spring KC 5 spring pack, HEI /IntReg Alt 20x8.5 OldSkools 5" BS, 275/45 Falkens

11-09-2015, 02:30 PM	#4
gmebey Registered User Join Date: May 2011 Location: Fort Collins, Colorado Posts: 95	Re: Two piece fan shroud After my post yesterday I took a more in-depth look at the overall problem. Since I have a long pump the fan sits further down in the shroud than it shroud, which makes it a pain to do anything with the belts. Plus there is only about 1/4" clearance between the alternator pulley and the shroud. My guess is over the years this problem was compounded by the various owns of the truck. An engine swap, a bigger radiator and few band aids……. you get the picture. As a short term solution. In my frustration I took the shroud to my woodshop and had a meeting with the band saw….. now it is a two piece! Now I need to look for the proper shroud for my application, but I have time.

11-09-2015, 06:32 PM	#5
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,513	Re: Two piece fan shroud I understand your situation completely. Im in the same boat. I did some trimming on mine too. It isnt permanent though. I may go electric. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

11-09-2015, 07:00 PM	#6
leftybass209 Registered User Join Date: Feb 2011 Location: Modesto, CA Posts: 2,189	Re: Two piece fan shroud What engine do you have in your truck? I have a SBC with a lwp, fan shroud, and full size clutch fan. You have to lower the shroud and the fan down together, then let you can make it happen. It isn't cut and dry simple, but it isn't hard.

11-09-2015, 11:53 PM	#7
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,513	Re: Two piece fan shroud I think what gmebey is talking about is his fan blades are placed too far into the shroud. The shroud itself is too close too the alternator. Mine is due to the 4 row radiator being so thick. I trimmed my shroud back about 1 1/2" to uncover the fan blades. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross

11-11-2015, 12:07 PM	#8
gmebey Registered User Join Date: May 2011 Location: Fort Collins, Colorado Posts: 95	Re: Two piece fan shroud My setup is a SBC 350, long pump, 4-core radiator and no AC. In order to avoid removing the radiator I had to trim about 2” off the bottom of the shroud in the truck to clear the water pump. I have opted for a short term solution and will either find a better shroud or go electric fan. Thanks for the help.

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