11-08-2017 | #1 |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Drilling a Fidanza
So I’m about to drill the pressure plate mounting screw holes deeper and tap for the longer bolts. Is there anything special about this process I need to know before I start?
H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
11-08-2017 | #2 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,658
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Re: Drilling a Fidanza
Be sure the drill bit you use does not cut back the existing threads and use a depth stop so all are the bore depths are uniform. Make first pass with a regular 3/8-16 starting tap then finish with a bottoming tap. Use aluminum thread cutting oil.
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
11-08-2017 | #3 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,658
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Re: Drilling a Fidanza
You may also have to slightly countersink the bore entry with a 3/8” drill bit or end mill cutter to allow the bolt shank to seat deeper.
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
11-08-2017 | #4 |
Join Date: Apr 2007
Location: Northern VA
Posts: 2,658
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Re: Drilling a Fidanza
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Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
11-08-2017 | #5 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,393
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Re: Drilling a Fidanza
My Fidanza was drilled tap size, all the way through from Fidanza. All I had to do was run the tap through.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
11-08-2017 | #6 | |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Drilling a Fidanza
Quote:
Good stuff, guys. Thanks H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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11-09-2017 | #7 |
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,393
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Re: Drilling a Fidanza
Yes, drill holes went all the way through the flywheel. It was only tapped deep enough for the standard bolts. All I has to do was start the tap into the existing threads and thread them deeper. My Fidanza was purchased in 2003. Looks like I got lucky....hope you are too.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
11-09-2017 | #8 | |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Drilling a Fidanza
Quote:
H
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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11-09-2017 | #9 |
Join Date: Oct 2004
Posts: 1,890
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Re: Drilling a Fidanza
Is there not a specialty bolt available that might make life wonderful? What is the actual depth of the holes?
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11-09-2017 | #10 | |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
|
Re: Drilling a Fidanza
Quote:
H
__________________
90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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