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Steel Hood Scoop?

EngineerDoug

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Hello all,

I'd could use some expert advice on adding a steel hood scoop. I have a '68 coronet with a steel hood in good condition - needs paint of course. I have always planned to go with a hood scoop. For a while I thought about a fiberglass hood with a six pack scoop.

To my mind there are three drawbacks to this route. First is cost, second is fitment, and third is color. I don't really want a black hood, and I gather that even the best fiberglass hoods tend to have some waves, etc. And a fiberglass hood is not cheap.

So I came across a steel cowl induction scoop. I think it would look good on the coronet hood (purists please bear with me). I like the idea of welding the scoop onto the hood, but am concerned about the use of filler. Even if I do a bang up job of welding/grinding there is bound to be a small amount of filler. I would probably use All Metal in these areas for strength.

Over time & vibration, would this filler tend to crack? Your thoughts/experience?

Thanks!
 
You shouldn't have a problem with filler cracking if it's mixed thoroughly, applied evenly, and not put on too thick.
 
Since the hood, and the scoop are both steel, their expansion rates are similar, and so you shouldn't be concerned with a small amount of bondo cracking, like a fiberglass scoop would. The big issue is warping the hood, or scoop, or both during welding. You need to make tack welds. No beads. Keep moving around, and allow the hood cooling times. When yo finish, you should have fully welded the scoop. Then a small amount of filler should be it.
 
Since the hood, and the scoop are both steel, their expansion rates are similar, and so you shouldn't be concerned with a small amount of bondo cracking, like a fiberglass scoop would. The big issue is warping the hood, or scoop, or both during welding. You need to make tack welds. No beads. Keep moving around, and allow the hood cooling times. When yo finish, you should have fully welded the scoop. Then a small amount of filler should be it.
They make a bolt on 6 pack scoop...
 
I'll give the bolt-on option some thought. I would assume there is some foam gasket material that goes between the scoop and the hood? I don't want to create a trap for water to hide. Vendors?

Thanks.
 
Weld that thing on, better than rivets!
 
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