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-   -   Cutting floor for hi hump tunnel ? (https://67-72chevytrucks.com/vboard/showthread.php?t=807001)

Chvy2NV 05-29-2020 12:02 AM

Cutting floor for hi hump tunnel ?
 
im going to be cutting my floor soon. looking for any pointers as to what to expect.. what tool did you use to cut ?

mongocanfly 05-29-2020 12:14 AM

Re: Cutting floor for hi hump tunnel ?
 
A cutting disc such as a Lennox metalmax is a much better choice than the abrasive discs.....
Or use a sawzall or body saw...depends on what tools you have..

LS short box 05-29-2020 04:33 PM

Re: Cutting floor for hi hump tunnel ?
 
I did mine with a plasma cutter. Laid the high hump down. Traced around it then cut about 3/4"-1" inside the line. Cleaned up the cut with an angle grinder.

derotoreut 05-29-2020 09:56 PM

Re: Cutting floor for hi hump tunnel ?
 
A plasma cutter would be the cats meow, but I can't afford one. I used a cutting disc on an angle grinder. I also used a smaller disc on my die grinder in some spots. I would go for it and then just clean up the edges with a grinder.

LS short box 05-30-2020 05:20 PM

Re: Cutting floor for hi hump tunnel ?
 
Yeah the plasma is great. If you want nice radius corners just use a hole saw 1" diameter? in each corner and connect the dots with a sabre saw.

First c10 06-03-2020 12:09 PM

Re: Cutting floor for hi hump tunnel ?
 
4 Attachment(s)
I placed my high hump on and drilled the holes in the floor then welded 3/8" flange nuts on the cab before I cut the hole. I cut the hole with a die grinder/cutoff wheel. It was pretty simple but I did have my cab on a rotisserie...

tinydb84 06-03-2020 02:29 PM

Re: Cutting floor for hi hump tunnel ?
 
Make sure there isn't anything under where you are cutting!

I used a combo of a cut off disc and an air body saw from harbor freight.

derotoreut 06-03-2020 10:31 PM

Re: Cutting floor for hi hump tunnel ?
 
4 Attachment(s)
Here's what I did to my 71 swb low hump. A bit unorthodox, but I wanted to assure no interference for my build. I was going to use a high hump, but still had some issues, so I made the change to fabricate a custom hump.

Attachment 2021488


Attachment 2021489


Attachment 2021490


Attachment 2021493

Chvy2NV 06-03-2020 11:34 PM

Re: Cutting floor for hi hump tunnel ?
 
cool:uhmk:

tinydb84 06-04-2020 01:49 PM

Re: Cutting floor for hi hump tunnel ?
 
I had to do something similar due to my 4l80e swap and Z. Isnt the prettiest but everything fits now.

https://live.staticflickr.com/65535/...40ca0458_b.jpg


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