i want to buy an l88 hood scoop for my 70' chevelle, but everyone tells me that i cannot use the "standard" methods of attaching it. they say that body putty will crack and fall off because of the heat. will fiberglass work?

I see you live in Pa. That's where I grew up. I'm still growing up according to my wife. But, anyway, Steel and Fiberglass will expand and contract at different rates causing cracks, let alone the vibrations and slamming the hood down. Every fiberglass/steel scoop job I've ever seen cracks or bubbles. Now, are you aware you can now buy a Steel cowl scoop for your hood? That's the way to go! Weld it on and Fagetaboudit.

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Triple Black 69 SS 396

Try Duramix, Most bodyshop suppliers carry it. Go with the 4040 or the small panel adhesive.
believe it or not it's used for attaching body panels such as 1/4 panels and roofs.


Jeff litka
72 Chevelle SS
72 montecarlo

jimmy p, where might a guy be able to find those stamped scoops that you can weld on? i've been looking around and haven't been able to find them. any links or phone numbers would be appriciated.

thanks.

www.thespeedcenter.net (http://www.thespeedcenter.net) makes some steel scoops.They are $149 though. For another hundred bucks you can get a Goodmark cowl induction hood.

hey i have the L-88 on my velle... here are some shots of it.. i know its cracked thats why im going to be redoing it in auto body this year.. i might just try to find a metal one of the L-88 and weld her on.. well here ya goo..

http://img.s10forum.com/album151/aax.jpg

http://img.s10forum.com/album151/aby.jpg

aaron

70isfine: thanks for the link, but i'm looking for an L88 scoop. all i saw on the site were cowl scoops. goodmark also does not make L88 chevelle hoods. they were the first company i tried, actually.

i may just have to spend a few years learning metalwork, and make my own at this rate. graemlins/clonk.gif

Dave, I attached mine with panel adhesive, then blended it into the hood with MarGlas. I have no idea on how it will hold up, as it still sits in the garage, waiting for paint. :( I came out nice so far, but as far as durability, we'll see. I'll get it on the car next year, and go from there. But I definietly wouldn't use bondo or regular body filler. I'm e-mailing you a couple pics. John

You know, I have not done this in years and I have no idea how they held up, but this is what I have done.

You "glue" the scoop on with "Vette Panel Adhesive". If the part is FIBERGLASS and not SMC. You use the "Vette Panel Adhesive" made by Evercoat part number 870 (quart). If it is SMC you use number 994. There are other brands of course, 3M has one. But I just like Evercoat products.

Ok, is it "fiberglass" or is it "SMC"? If it is perfectly smooth on both sides it is SMC. SMC stands for "Sheet Moulded Compound" and is believe it or not "stamped" like metal from a simi cured sheet of "fiberglass". It really isn't fiberglass, but similar. Anyway that is how many high end parts are made and for instance OEM parts like the body panels on Corvettes since about 1982 I think.

"Fiberglass" is usually very rough on the inside. They spray it into a mould and that sprayed side is not seen when the part is installed so they leave it rough.

Ok, you don't screw, rivet, nothing, just "glue" it with the Vette panel adhesive or SMC panel adhesive.

You grind both surfaces with 36 grit open coat grinding disc. You mix this stuff up just like "bondo" and you spread it on with a little pressure to force it into the scratches. You then spread it out a little thicker (all the same application while it is all wet). You do this on both hood and scoop. Then lay the scoop in place pressing down firmly without squishing out too much adhesive. You want about an 1/8 inch or so between the parts.

Let it cure and sand off all the stuff that squished out. Lay another application out over the seam to blend it in and sand it smooth.

Metal and fiberglass may have different expansion and contraction rates but this is how ALL Corvettes were "glued" together up until the eighties I believe. They were metal frames in the bodies and the fiberglass was "Glued" on. The doors for instance are exactly the same as your Chevelles in construction. The only difference is your Chevelle has a metal skin the Vette had a fiberglass on "glued" to the metal shell.

This is not as good as a metal hood and scoop, but an option for you.

i bolted mine on id give you photos but i dont know how

martinsr: thanks for the great information. i'll read over it a few more times and do some more research. this definitely opens a door or two to the look i'm trying to achieve. thanks!

Dave, your post got me searching for my future hood as well, and I cam across a post by...o shoot who was it, oh well anyways, they supplied a link and positive remarks about a company. I was looking for a 4" cowl, but noticed when browsing that they have L-88 hoods for the 70, bolt on for $380. Hope this helps, and post some pics when you decide what to do! VFN Fiberglass (http://www.vfnfiberglass.com/site.htm)

Also look at the Harwood site... They recomend the Duramix Glue to apply the scoops to a steel hood.. I know of one application on a 62 Impala four or five years ago. .and last seen shows no signs of cracking in the joint area..