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Joined: Dec 2007
Posts: 10,338 Likes: 3
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Premium Member
Joined: Dec 2007
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Can you get a gasket for the hood tachs still? Some outfits repop them, but they are nowhere near original. I put a light bead of clear silicone around the bottom of my tachs, then let it dry. Then later, set it on the hood and tighten it down. That is a better seal than the hokey repops.
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold  1980 T/A SE Bandit - Sold
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Joined: Apr 2010
Posts: 6,758
FGF Premium Member
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FGF Premium Member
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Here is a 67 gasket from AMES
"Part#
FD355
Description 67 HOOD TACH GASKET (RE)
Net Comments THIS GASKET WILL NOT FIT THE REPRODUCTION TACH WITHOUT ELONGATING THE STUD HOLES. THIS GASKET IS USED BETWEEN THE HOOD TACH AND HOOD. THESE WERE ORIGINALLY USED BY GM IN 1967, BUT OFTEN LOST BY RESTORERS AND BODY SHOPS WHEN RE-PAINTING THE HOOD. QUALITY IS EXCELLENT."
Last edited by Gus68; 12/07/18 06:29 PM.
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Joined: Sep 2018
Posts: 300 Likes: 1
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Hi All!
Getting ready to cut a hole myself... '68, with 68 short tach. Saw youtube (Scared Shiftless) install, but they went through at a point on the hood that centered within the hood's triangular under framing. That puts the hole in a little bit diff place than the template Bob has I think... any thoughts or comments ? I, as we all, have only one shot at this....yikes!
I'm going to take Bob's template and test the spot to see how diff.... will let you know~
'68 400HO Coupe, 4 spd, 259 interior, Windward Blue.
My other car's a Johnson 15 outboard on a '61 Starcraft rowboat... Just sayin'.
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Joined: Dec 2007
Posts: 10,338 Likes: 3
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Premium Member
Joined: Dec 2007
Posts: 10,338 Likes: 3 |
The hole goes through part of the underside framing. So if you say where it missed the framing, it would be in the wrong place.
The template on fgf is within an 1/8" of original.
I used to be indecisive. Now I'm not sure. I feel like I am diagonally parked in a parallel universe. 1968 400 convertible (Scarlet) 1976 T/A - 455 LE (No Burt) 1976 T/A New baby, starting full restoration. 1968 350 - 4 speed 'vert - 400 clone (the Beast!) 1968 350 convertible - Wife's car now- 400 clone (Aleutian Blue) (Blue Angel) 2008 Durango - DD 2008 GXP - New one from NH is AWESOME! 2017 Durango Citadel - Modern is nice! HEMI is amazing! 1998 Silverado Z71 - Father-daughter project 1968 400 coupe - R/A clone (Blue Pearl) (sold) 1967 326 convertible - Sold 1980 T/A SE Bandit - Sold
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Joined: Apr 2010
Posts: 6,758
FGF Premium Member
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FGF Premium Member
Joined: Apr 2010
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The hole goes through part of the underside framing. So if you say where it missed the framing, it would be in the wrong place.
The template on fgf is within an 1/8" of original. Get Type ll - short type template Don't use YouTube SS location.
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Joined: Apr 2010
Posts: 6,758
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FGF Premium Member
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Here is a pic of my original Tall type tach gasket. This is the inside gasket.
Last edited by Gus68; 01/11/19 04:02 PM.
Engine Test Stand Playlist: https://www.youtube.com/playlist?list=PLwoxyUwptUcdqEb-o2ArqyiUaHW0G_C88restoring my 1968 Firebird 400 HO convertible (Firedawg) 1965 Pontiac Catalina Safari Wagon 389 TriPower (Catwagon) 1999 JD AWS LX Lawn tractor 17hp (my daily driver) 2006 Sequoia 2017 Murano (wife's car) 202? Electric car 203? 68 Firebird /w electric engine 2007 Bayliner 175 runabout /w 3.0L Mercuiser__________________________________________________________
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Joined: Jul 2003
Posts: 4,248 Likes: 14
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I finally moved my tack to the 400 hood. I had to enlarge the mount holes a little. 3/16 holes have no margin for error whatsoever. Apparently I didn't locate the holes perfectly. Also, with the 3 5/8 hole, it might be tricky to replace the light bulb. So a 3 3/4 hole might be optimal or add a little extra to clear the socket.
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Joined: Feb 2019
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Does the new tach fog up?
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