1969 radiator shroud

2777 Views 8 Replies 7 Participants Last post by Jynx, 3 mo ago

gilby53

Discussion Starter · Mar 14, 2009

I have a 69 caprice w/350 and air, I am trying to find a radiator shroud to fit this I have come up eith 3 p/n's from GM. 3939387/3939380/3939390. It is approx. 27 inches across on mounting holes. No one seems to reproduce these. Any Idea's?

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Big Dave

· #2 · Mar 14, 2009

You could make one out of flat aluminum sheet rolled up and riveted together, Then block off the area not exposed to the shroud with more flat aluminum plate. You want about the last third of the blade tip exposed at the end of the shorod to get the depth correct. You must also account for motor movement as even a stock motor will wallow around on sponge rubber motor mounts by a half inch or more.

Without a shroud the air flies off the ends of the blade cutting it's useful diameter by two thirds. This much loss in air flow usually leads to over heating.

Big Dave

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1969CustomCoupe

· #3 · Apr 20, 2009 (Edited)

Gilby53, Not sure if you still need this info or not, but my 1969-1973 Motor's Crash Estimating Guide shows part number 3939387 for the 69' model. I have in my stash of stuff a NOS GM 3939390 shroud which is correct for the 1970 Impala SB with A/C. Personally I think they are they same. I've had this one in my collection since 1982 when I broke a motor mount in my 70' SB Impala. I don't have the box any more, but you can tell it's never been mounted. I ended up going big block and not needing it. Let me know if you're interested and we could work something out. Dave

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69Impala327

· #4 · 3 mo ago

1969CustomCoupe said:
Gilby53, Not sure if you still need this info or not, but my 1969-1973 Motor's Crash Estimating Guide shows part number 3939387 for the 69' model. I have in my stash of stuff a NOS GM 3939390 shroud which is correct for the 1970 Impala SB with A/C. Personally I think they are they same. I've had this one in my collection since 1982 when I broke a motor mount in my 70' SB Impala. I don't have the box any more, but you can tell it's never been mounted. I ended up going big block and not needing it. Let me know if you're interested and we could work something out. Dave

Hey Dave, this may be a long shot but do you by chance still age the NOS 3939390 fan shroud?

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65_&_67_Impala

· #5 · 3 mo ago

69Impala327 said:
Hey Dave, this may be a long shot but do you by chance still age the NOS 3939390 fan shroud?

a very long shot. 14 yrs since the last post; 12-1/2 yrs since the user was even on the forum

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Jynx

· #6 · 3 mo ago (Edited)

I think he's asking Big Dave, probably a PM to Dave would be the best option.

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62BillT

· #7 · 3 mo ago

Jynx,

1969CustomCoupe's name is also Dave.

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65_&_67_Impala

· #8 · 3 mo ago

@62BillT would be correct as that is where the part# is asked and then signed at the very end by 'Dave'

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Jynx

· #9 · 3 mo ago

Apologies Dave, you're right about Dave, just another case of too many Dave's I guess. It's kind've a running joke amongst a few friends of mine where all the "Dave's" have diiferent nicknames, otherwise there's the constant questions of "which Dave are you talking about".

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