PUNISHER VETTE

I posted this pic in my fiberglass repair thread but needed some pretty good help with this so wanted to start a dedicated thread.
2014 vs. LT-1



So since the C7 part of the forum so far has been almost completely useless I need help from the awesome C3 guys! Don't let me down.

$250 later I have pieces and a dream.



Okay. Here's where the help comes in!!!! Stock it looks like the C7 just used the push pins(white things) to attach the vent to the hood. Since I don't have the stock C7 hood with built in holes(or any way to get pictures of how it actually mounts), or want the vent to be permanent once attached I need to do something different.



I was thinking recessed bolts molded into the fiberglass repairs I'll be making then put a lock nut on the inside near the engine. (Need to check my clearance first.)

Any other suggestions on a way to mount the vent to any custom fiberglassing I do?

Don't try to discourage me...it'll only make me want to do it more lol.

MrJlr

That's very cool

doorgunner

No......No!

Don't do it!

Step away from the hood!

Get a grip MAN!





(There....my work is done here!)

T-TOP TOM

It's your car go for it. You don't know until it is done how much you or others might like it. DO IT

F22

I like it! Looks very cool. Don't forget to consider the structure on the underside of the hood before you cut! Also, you might just consider mounting it, with those white push pins, if the hood can handle it. Just saying.

LudemJo

Yeah, I would listen to Regis (F22), he has cut a C3 hood and had excellent results. You may need to fabricate some bracing on the underside of the hood to provide support depending on what internal support you cut out to install the hood vent.

I think it is a cool idea, and can't wait to see it completed.

John

PUNISHER VETTE

Problem is I don't have any clue what those white things actually went into on the C7 hood as it wasn't a separate part that I could order and it looks like once pushed onto the hood it can't be removed(without drilling the white clips maybe). That is something I don't want to happen on mine... since it'll need to go on/off many times for the modification process.

That's why I was thinking recessed bolts or a nut into the fiberglass of the hood. Then some rubber washers on both sides of the black part to prevent it from getting over-tightened.


Also! Don't expect mine to look exactly as the C7 does!!!! I'll make it fit and do my best

Ron71

I would go with rivnuts. They mount similar to a pop rivet and would allow the machine screws to be taken out repeatedly and would allow the vent to be removed if needed. I bought my rivnut tool and assorted rivnuts at Menards I believe.

doorgunner

O.K.

I got it!


O.K.


Phase 1........................

Put all the loose pieces of the puzzle in a labeled jar on a shelf in a dark closet.

Now....since the hood depression fit on the white hood is no where exact compared to the C7 hood pic....the question is:

Do you want to fit it/black vent into the existing depression in the white hood?

Yes?

Then proceed.

No?

Then fiberglass the depression in the white hood for a perfect fit similar to the C7 fitment.


Put your answer here: _______



Phase II will begin in a moment.

PUNISHER VETTE

The depression on the white hood is just behind the radiator support. SO without major changing of the radiator/support/angle the vent HAS to go in the current depressions spot.

I have a few ideas of what I'll do to make it work. Just the biggest concern I have is how it'll attach to the hood when done... since I don't like the white clips.

Jack605

I think it will look like a hack job because the vent is smaller than the hood depression, how hard would it be to make a vent (or modify what you have) that has the look your looking for but would better fit the curves of the C3 hood?

Another thought, buy another vent and widen the vent to fit the hood.

F22

Those white nylon clips are pretty big and by their design, they spread the load around each hole, with those wings. I'd bet that they'd be very difficult to even break. If it works on the C7, can't see why it wouldn't work here. You could also put a thin sheet metal frame around the underside of the hole in the hood, if you're worried about the hood, but I'd bet, that it's at least an 1/8" thick. Just make sure the total depth of the hood and the metal, don't exceed the capacity of the nylon pins. My hood pieces are held on with 3M Professional Body Adhesive Tape!

PUNISHER VETTE

Yeah...I wasn't planning on just cutting an opening to fit the vent and calling it good.

The plan is to cut and fiberglass the current hood to fit the vent. i've been practicing my fiberglassing skills on the rest of the car for a while now so I think I can make it look decent.


The main difference I can't really change is I can't go any lower. So the initial rise on the LT-1 hood, then depression has to stay there where on the C7 hood it's basically flat, then indent for vent.


Yeah. Like I said above I don't have the holes in my hood that those white clips would fit into and even if I put them in somehow(have no clue) there is no way the vent will come back off once clipped it from what it looks like...which i don't want. I'm almost positive they'll need replaced with something else that'll allow me to remove the vent when needed...just haven't decided on what yet.

F22

Why would you have to remove it, later on? Once it's on, it's a permanent part of your hood! Why the worry about drilling the holes, when you're already cutting a huge square chunk out of it, to begin with? Unless you might have slightly creeping thoughts as to what size those holes have to be, to fit the wings through on the nylon pins and their relation to the square. I'll run it by my Shop Partner, John. He's a mechanical genius type of guy.

BOSTONCAMARO

is it an original GM hood? if so maybe sell it off and pick up an aftermarket one to chop up...I do like the idea though

PUNISHER VETTE

one because the car isn't painted yet. So i'll have to have the vent on/off i'm sure a hundred+ times while I fiberglass and sand to fit.

Then once it's done i'll need the vent off to paint. So in theory I can't ever mount the vent up until after I paint or else it's not coming off.

I'm also not 100% sure how my LS1 intake will fit when the hood is closed with this vent in place. What if I shut the hood and break a fin? I'd have to work hard to get the broken part off and replace. making it removable just seems like the safter and easier thing to do imo.

PUNISHER VETTE

It's aftermarket. APR? I bought it used from a guy who never installed it.

It's going to suck cutting up a brand new already primmered hood but o well.

persuader

That vent will look good on that hood though I prefer the BB hood style the way it is. But it is most definitely doable. I would start by cuting out the recessed part of the hood and with resin and mat make it even and smooth without it. But still having somewhat of a recces, Just not at that much of an angle. Then make an exact template of the vent (only the part that protrudes through the hood) and make the cut out in the hood. Once you have the vent fitting nicely into the hood with good fit and finish then I can see that there are a few ways you can attach it from the inside. That I would bet you can figure out on your own. I wish I was better at explaining things on a keyboard but the bottom line is that I could see it being done and looking good. Go for it.

qwank

the stock C7 hood is double walled so the clips can latch in and not come through the top of the hood. if the Lt-1 hood is a single layer of fiberglass the only option is going to be to glue the louver on. GM had a recall for the H3 hood louvers and they made us glue the louver on with windshield adhesive. should work for you c7 louver also.

Shark Racer

I would devalue your car by the cost of a new hood and paint if I were looking at purchasing it.

I'd really recommend painting it the same color as the hood otherwise it's going to start looking like a Pep Boys car real fast. The black plastic stuff does not blend well with the style and lines of a 1969 car. Personally, I think it looks like crap on C7s(one of a few of my gripes with the C7).

Please don't put that stupid C7 stingray emblem on the side of the car. It looks like bird poop(or worse).