is a part of the shroud missing?

[steve k.]

I feel like there are some parts missing. Sorry for poor quality images. It'sacamero phone.

It's a 1981 C30 that used to have a 454 and now has a 350.




thanks,
steve k.

[rich-white]

Don't know about yours but some of the 350's had an aluminum spacer block that was about 2-2 1/2 inches thick that moved the fan closer to the radiator to help to draw ait into fan. Can't tell from pics if you have or not.

[76sierraclassic]

I could be wrong, but I think the problem is that you have the whole radiator/shroud setup from the 454. My stock 350 setup has a different upper radiator support and a little wider shroud there than that. The fan isn't covered all the way by the shroud on mine, but more than what you have there.

Mike

[bigblock73]

Yup, there are two different shrouds/upper brackets. All small blocks (except 400) and 6 cylinders had one style, while the big block and 400 trucks had the one pictured.

To solve it easily, go get a spacer, one that goes between the pully and fan, that should solve your problem. You ideally want the fan 1/2 way in the shroud.

[steve k.]

thanks a lot. got the spacer and the new clutch. all fits nicelly and looks like it belongs there.

steve k.

[rich-white]

If you still have problems I have a fan shroud for a small block in good shape.

[dswancutt]

Ken;

I have to disagree with you on the shrouds. I have two 78’s, one is a 350 C-10, the other is a 400 K-10 and both have the deep metal panel with large shrouds. Both are factory AC trucks. However, my uncle has a 77 w/o air and it has a smaller shroud.

Doug

[bigblock73]

Originally Posted by dswancutt

Ken;

I have to disagree with you on the shrouds. I have two 78’s, one is a 350 C-10, the other is a 400 K-10 and both have the deep metal panel with large shrouds. Both are factory AC trucks. However, my uncle has a 77 w/o air and it has a smaller shroud.

Doug

The wider covers work with the narrower shrouds, and the narrower covers work with the wider shrouds...you cant have a wider metal cover AND wider shroud...it just won't fit and work properly. I do not believe A/C has anything to do with it because the condenser is mounted in front of the radiator...but i could be wrong.

I have never seen an original 350 powered truck with a wider top cover (wider radiator)...maybe 3/4 tons were different, but i don't think any 1/2 tons came that way. Are you sure your 78 C-10 is all original? Your 400 K-10 I know would have the wider cover & larger radiator.

[dswancutt]

Jeff;

My C-10 was a 76,000 mile truck when I pulled the engine because the head cracked. It still had the GM lower radiator hose and the french clips on the exhuast manifolds when I bought it. It is a big 10, so I don't know if that has any thing to do with it.

Doug