1971 Demon Hood cutouts
- Thread starter gts1
- Start date
-
Yes the Demons all had the cut outs the Duster twisters did not
Thank You
44067gtdart
Well-Known Member
I also have a question. Was there a special air cleaner for the scoops? Also, what size were the cut outs for the holes?
No they used the standard silenced style found on 70 and 71. The 72 and 73 snorkel scoops also used the standard air cleaner. The hole was 4 inch and the was a rubber water dam used. A hole saw will mess the hood up get a hole punch die set. That is what I use. You can just buy the die and use a bolt to cut the hole.
https://www.lowes.com/pd/Southwire-...0_uEIhxMEoPrpuClzrAaAl5nEALw_wcB&gclsrc=aw.ds
https://www.lowes.com/pd/Southwire-...0_uEIhxMEoPrpuClzrAaAl5nEALw_wcB&gclsrc=aw.ds
44067gtdart
Well-Known Member
Great info Thanks
Yote
Well-Known Member
If you are going to put holes in your hood BE sure to get the rubber ‘donuts’ first . Then measure them for the proper size of hole to make. Ask me how I know.
I used a standard bimetal hole saw on mine. Cut slowly, don’t get in a hurry. After the hole is cut a half round file can be used to remove the fine flare left by the saw.
Edit: after the pilot hole is through ( mine was 1/4”) I removed the bit and replaced it with a 1/4” smooth rod. This prevents what a drill bit would do, which is to try to grab and make the pilot bit wobble off . Thus keeping the hole saw better centered.
My holes were near perfect except the diameter because I didn’t measure the grommet first. I researched for the proper size first including this forum. Still wrong.
I also did manage to make a design to funnel the incoming air to the air cleaner.
Yote
I used a standard bimetal hole saw on mine. Cut slowly, don’t get in a hurry. After the hole is cut a half round file can be used to remove the fine flare left by the saw.
Edit: after the pilot hole is through ( mine was 1/4”) I removed the bit and replaced it with a 1/4” smooth rod. This prevents what a drill bit would do, which is to try to grab and make the pilot bit wobble off . Thus keeping the hole saw better centered.
My holes were near perfect except the diameter because I didn’t measure the grommet first. I researched for the proper size first including this forum. Still wrong.
I also did manage to make a design to funnel the incoming air to the air cleaner.
Yote
Last edited:
44067gtdart
Well-Known Member
Thank you for that info. I will definitely do my research and buy the grommets first. The only measurements I have come up with so far is 4.125” for hole size.
Yote
Well-Known Member
That was the same measurement I found also, that is why I say to measure grommet first. I relied on that measurement and it was too large for the grommets I received.
Yote
Yote
Swingin Chrome
Well-Known Member
I just received my grommets this week as I will also be opening up my hood openings this spring.I guess I will be sure to measure them before making the hole. Lots of good info in this thread.I found this picture online while doing my own research. Cannot confirm measurements but it’s a start.RJ
Dfr360cuda
Diagnosis... Plum Crazy.
The punch that OMM reccomends works great. I use a hand held hydraulic one at work all the time for punching junction boxes for conduit.
Make sure you know what size hole you want. 4 inch conduit is 4 1/2” OD.
Make sure you know what size hole you want. 4 inch conduit is 4 1/2” OD.
I've got the original sheet metal (only) that I kept as a template from a 70 swinger if you want to use it.
Swingin Chrome
Well-Known Member
Thanks for the offer Troy but I think I will just wing it. Close is good enough for me as my car is far from perfect but working on it! I’m focusing on the hood this summer as there is a few small dimples caused by the air filter wing nut that I would like to repair. RJ
and when you put the grommet in place the tall side goes up into the scoop - it's to keep rain sheeting up the hood from ending up all over your engine...
-
