Cutting my 4 spd tunnel hole - Team Camaro Tech
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post #1 of 35 (permalink) Old May 13th, 15, 09:50 AM Thread Starter
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Dave
 
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Cutting my 4 spd tunnel hole

I'm getting ready to cut my 4 speed hole in my new floor pan. I have a set of oxy/acetylene torches, but I think my head/tip might be too large. What size should I use to recreate the original look? I attached a couple of pics of my original tunnel. I was planning on drilling the four trim screw holes first and then measuring out the hole and laying down tape to follow. Any suggestions so I can get this right the first time would be [appreciated].












'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

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post #2 of 35 (permalink) Old May 13th, 15, 10:34 AM
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Re: Cutting my 4 spd tunnel hole

1/8" 000, 1/4" 00 ,3/8" 0 ,1/2" 0
3/4" 1
1" 2
2" 3 12" 8** 45/55 7/25 10/15 3/5 .41
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post #3 of 35 (permalink) Old May 14th, 15, 05:22 AM Thread Starter
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Re: Cutting my 4 spd tunnel hole

Thanks for the post Kevin. Which one of those tips would make the cut look like the original did? I know enough about oxy/acetylene torches to heat up and cut metal. That's about the extent of my knowledge for them... Mine are the full size set. Not the baby bottles.
Is everyone just cutting them with a sawzall or jigsaw?

'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

Semper Fi!

"The galleries are full of critics. They play no ball, they fight no fights. They make no mistakes because they attempt nothing."
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post #4 of 35 (permalink) Old May 14th, 15, 05:26 AM
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Re: Cutting my 4 spd tunnel hole

This may help as well: http://www.camaros.org/forum/index.php?topic=8472.0

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #5 of 35 (permalink) Old May 14th, 15, 05:29 AM
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Re: Cutting my 4 spd tunnel hole

Is the big block engine laterally displaced slightly from the small block?? Does that affect where the transmission/shifter is positioned? The previous reference was for a small block car (Z28)...

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post #6 of 35 (permalink) Old May 14th, 15, 05:33 AM Thread Starter
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by DT View Post
Thanks. I'll have to check that one out at home tonight. CRG started getting blocked a few months ago. Lame...

Quote:
Originally Posted by 69Z28-RS View Post
Is the big block engine laterally displaced slightly from the small block?? Does that affect where the transmission/shifter is positioned? The previous reference was for a small block car (Z28)...
Yesuh. I'm just looking for the cutting technique though, so I'm not sweating the location. I have that locked on.

'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

Semper Fi!

"The galleries are full of critics. They play no ball, they fight no fights. They make no mistakes because they attempt nothing."
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post #7 of 35 (permalink) Old May 14th, 15, 05:36 AM
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by 69Z28-RS View Post
Is the big block engine laterally displaced slightly from the small block?? Does that affect where the transmission/shifter is positioned? The previous reference was for a small block car (Z28)...
No. Big blocks use different shifter mounting brackets than Small Blocks. The 4 speed hole is in the same location for both engines.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #8 of 35 (permalink) Old May 14th, 15, 05:38 AM Thread Starter
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Re: Cutting my 4 spd tunnel hole

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No. Big blocks use different shifter mounting brackets than Small Blocks. The 4 speed hole is in the same location for both engines.
Oh ya... Thanks Donny. Forgot that the hole didn't move. Too quick a draw on the keyboard.

'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

Semper Fi!

"The galleries are full of critics. They play no ball, they fight no fights. They make no mistakes because they attempt nothing."
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post #9 of 35 (permalink) Old May 14th, 15, 05:38 AM
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by sgthawkusmc View Post
Thanks. I'll have to check that one out at home tonight. CRG started getting blocked a few months ago. Lame...


Yesuh. I'm just looking for the cutting technique though, so I'm not sweating the location. I have that locked on.
Here is what the torch cut looks like:

http://www.ebay.com/itm/1969-Camaro-...45e32c&vxp=mtr

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #10 of 35 (permalink) Old May 14th, 15, 05:43 AM Thread Starter
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by DT View Post
Here is what the torch cut looks like:

http://www.ebay.com/itm/1969-Camaro-...45e32c&vxp=mtr
Dang blocked websites... Thanks again. I'll check it out tonight. I have my original tunnel to compare it though, so I know what it's supposed to look like. I posted a pic of it in my first post. I'm just trying to get the cutting head info and any other tips so when I make the cut it looks right.

'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

Semper Fi!

"The galleries are full of critics. They play no ball, they fight no fights. They make no mistakes because they attempt nothing."
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post #11 of 35 (permalink) Old May 14th, 15, 05:43 AM
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by sgthawkusmc View Post
Thanks. I'll have to check that one out at home tonight. CRG started getting blocked a few months ago. Lame...


:
This link has very specific hole location measurements. Highly recommend you review it.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #12 of 35 (permalink) Old May 14th, 15, 05:46 AM Thread Starter
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by DT View Post
This link has very specific hole location measurements. Highly recommend you review it.
That I will. I appreciate the info.

'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

Semper Fi!

"The galleries are full of critics. They play no ball, they fight no fights. They make no mistakes because they attempt nothing."
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post #13 of 35 (permalink) Old May 14th, 15, 05:47 AM
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Re: Cutting my 4 spd tunnel hole

The EBay link above shows a 4 speed tunnel replacement "hump" with the torch cut out by Camaro Specialties. Remember a torch was used so not all of the cut-outs are going to look exactly the same.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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post #14 of 35 (permalink) Old May 14th, 15, 05:52 AM Thread Starter
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by DT View Post
The EBay link above shows a 4 speed tunnel replacement "hump" with the torch cut out by Camaro Specialties. Remember a torch was used so not all of the cut-outs are going to look exactly the same.
I'm sure there's going to be some variation, but as long as the cut edge looks similar, doesn't look hacked, it's within the 4 trim screw holes and the shifter fits correctly, I'll be good with it.
I'm not going to include the screw up that it looks like they made on mine. If you look at the first picture, there's a cut out all the way over to the passenger side trim screw area. Must have been a rough Monday morning...

'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA

Semper Fi!

"The galleries are full of critics. They play no ball, they fight no fights. They make no mistakes because they attempt nothing."
HawkX66 is offline  
post #15 of 35 (permalink) Old May 14th, 15, 06:27 AM
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Re: Cutting my 4 spd tunnel hole

Quote:
Originally Posted by sgthawkusmc View Post
I'm sure there's going to be some variation, but as long as the cut edge looks similar, doesn't look hacked, it's within the 4 trim screw holes and the shifter fits correctly, I'll be good with it.
I'm not going to include the screw up that it looks like they made on mine. If you look at the first picture, there's a cut out all the way over to the passenger side trim screw area. Must have been a rough Monday morning...
Are you cutting that out all together ?? That EBay link is the tunnel repair section with the torch cut-out already.

EDIT, I just read you have a new floor pan.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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