I've always neatly riveted my hood scoops on, whether it be ABS onto my old street racer steel hood or ABS onto my fiberglass hood on the race car....done neatly and painted, it's a very clean installation IMO...
If you want the homogenous look, I'd buy a glass repro hood with the scoop molded in...
I thought about using rivets but, wasn't sure how it would turn out. Is there any adhesive that you could use to mate it to the hood ? I thought about sanding down the base of the hood scoop(so there won't be as big of a lip or step) & using adhesive without any rivets. Tried that with any success ??
I've had reasonable success using Devcon's epoxy products to repair metal and stick plastics to metal but don't know how they'd hold up with the flexing and expansion/contraction cycles of a big piece of sheet metal like a hood....
Nope, no practical experience with your prospective solution...sorry...
This may be stupid, but is there a reason you can't fiberglass it on to the hood? And then sand down the excess fiberglass used to mount it. I once repaired a steel hood with fiberglass. Someone cut a 3" hole in the hood right over the carburetor, so I cut away the rough edges, sanded it down, and fiberglassed over the hole. I then finished sanded top and bottom, and unless you were to run a magnet over it, you wouldn't even know the hole was there.
I intend on doing something similar with my 66. I have a bond on shelby scoop, and I plan on cutting a hole in the hood and building a ram air style hood scoop retro the 65 shelbies.
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