General Motors Kits Archives - Thread Doctor https://www.threaddoctor.com/product-category/manufacturer-kits/general-motors-kits/ Time-Sert Thread Repair Kits - Authorized Time-Sert Distributor Thu, 04 Sep 2025 18:01:39 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 Time-Sert EN-42385-50 M12 x 1.75 Gen V Head Bolt Thread Repair Kit https://www.threaddoctor.com/product/time-sert-en-42385-50-m12-x-1-75-gen-v-head-bolt-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-en-42385-50-m12-x-1-75-gen-v-head-bolt-thread-repair-kit/#respond Fri, 25 Jul 2025 14:32:38 +0000 https://www.threaddoctor.com/?post_type=product&p=6948 Time-Sert EN-42385-50 is a M12 x 1.75 Head Bolt Thread Repair Kit used for Gen V engines. This kit is used for first time thread repairs. Application 2015 LS9 2014 Corvette 6.2L V8 Full-size Trucks 4.3L V6, 5.3L V8 or 6.2L V8 Silverado, Sierra, Tahoe, Yukon, Escalade or Suburban Kit Includes Tap Step Drill with […]

The post Time-Sert EN-42385-50 M12 x 1.75 Gen V Head Bolt Thread Repair Kit appeared first on Thread Doctor.

]]> Time-Sert EN-42385-50 is a M12 x 1.75 Head Bolt Thread Repair Kit used for Gen V engines. This kit is used for first time thread repairs.

Application

  • 2015 LS9
  • 2014 Corvette 6.2L V8
  • Full-size Trucks 4.3L V6, 5.3L V8 or 6.2L V8 Silverado, Sierra, Tahoe, Yukon, Escalade or Suburban

Kit Includes

The post Time-Sert EN-42385-50 M12 x 1.75 Gen V Head Bolt Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-en-42385-50-m12-x-1-75-gen-v-head-bolt-thread-repair-kit/feed/ 0 Time-Sert 14300 7/16-14 Universal Head Bolt Thread Repair Kit https://www.threaddoctor.com/product/time-sert-14300-7-16-14-universal-head-bolt-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-14300-7-16-14-universal-head-bolt-thread-repair-kit/#respond Thu, 24 Oct 2024 14:18:52 +0000 https://www.threaddoctor.com/?post_type=product&p=6239 Time-Sert 14300 7/16-14 is a Universal Head Bolt Thread Repair kit for deep head bolt holes. Kit includes all the tools and 10 inserts 1.180″ inches length – Order more inserts here Instructions are included in the kit. If you are repairing head bolts that are flush to the surface and only 5/8″ inch deep […]

The post Time-Sert 14300 7/16-14 Universal Head Bolt Thread Repair Kit appeared first on Thread Doctor.

]]> Time-Sert 14300 7/16-14 is a Universal Head Bolt Thread Repair kit for deep head bolt holes.

Kit includes all the tools and 10 inserts 1.180″ inches length – Order more inserts here

Instructions are included in the kit.

If you are repairing head bolts that are flush to the surface and only 5/8″ inch deep in a though hole see kit part number 0761D

The post Time-Sert 14300 7/16-14 Universal Head Bolt Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-14300-7-16-14-universal-head-bolt-thread-repair-kit/feed/ 0 Time-Sert J-42385-500 GM Cadillac Northstar 4.0/4.6 V8 Thread Repair Kit https://www.threaddoctor.com/product/time-sert-j-42385-500-gm-cadillac-northstar-4-0-4-6-v8-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-j-42385-500-gm-cadillac-northstar-4-0-4-6-v8-thread-repair-kit/#respond Fri, 22 Sep 2023 15:59:23 +0000 https://threaddoctor.com/?post_type=product&p=4907 Time-Sert J-42385-500 GM Cadillac Northstar 4.0/4.6 V8 Thread Repair Kit. Time Sert thread repair kits made in USA. Time-Sert J-42385-500 Thread Repair Kits. This block has 1 depth for all head bolt holes. Last year for this block 1999 10 Steel Inserts – 11MM X 1.5 X 30MM LENGTH INCLUDED. 10 MORE INSERTS ARE NEEDED […]

The post Time-Sert J-42385-500 GM Cadillac Northstar 4.0/4.6 V8 Thread Repair Kit appeared first on Thread Doctor.

]]> Time-Sert J-42385-500 GM Cadillac Northstar 4.0/4.6 V8 Thread Repair Kit.

Time Sert thread repair kits made in USA.

Time-Sert J-42385-500 Thread Repair Kits.

This block has 1 depth

for all head bolt holes.

Last year for this block 1999

10 Steel Inserts – 11MM X 1.5 X 30MM LENGTH INCLUDED.

10 MORE INSERTS ARE NEEDED WHEN DOING BOTH SIDES OF THE ENGINE.
Click here: for video instructions

Order Carbon Steel Inserts Click Here

Click Here for Instructions

PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES

TIME-SERT is a thread renewal system Easily repair stripped or damaged threads

TIME-SERT thread repair system the ultimate way to repair threads in stripped or damaged holes.

GM DOWEL PIN CLICK HERE

Two dowel pins are needed when repairing one side of the engine.  Four are needed when repairing both sides of the block

 

The post Time-Sert J-42385-500 GM Cadillac Northstar 4.0/4.6 V8 Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-j-42385-500-gm-cadillac-northstar-4-0-4-6-v8-thread-repair-kit/feed/ 0 Time-Sert J-42385-300 M10 x 1.5mm GM Northstar Mainbearing Thread Repair Kit https://www.threaddoctor.com/product/time-sert-j-42385-300-m10-x-1-5mm-gm-northstar-mainbearing-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-j-42385-300-m10-x-1-5mm-gm-northstar-mainbearing-thread-repair-kit/#respond Fri, 22 Sep 2023 15:48:07 +0000 https://threaddoctor.com/?post_type=product&p=4896 Time-Sert J-42385-300 M10 x 1.5mm GM Northstar Mainbearing Thread Repair Kit. Time Sert thread repair kits made in USA. Time Sert J-42385-300 Thread Repair Kits. 10 Steel Inserts – 10MM X 1.5 X 22mm LENGTH INCLUDED. 10 MORE INSERTS ARE NEEDED WHEN DOING THE MAIN BEARING. Click here: for video instructions Order More Steel Inserts […]

The post Time-Sert J-42385-300 M10 x 1.5mm GM Northstar Mainbearing Thread Repair Kit appeared first on Thread Doctor.

]]>

Time-Sert J-42385-300 M10 x 1.5mm GM Northstar Mainbearing Thread Repair Kit.

Time Sert thread repair kits made in USA.

Time Sert J-42385-300 Thread Repair Kits.

10 Steel Inserts – 10MM X 1.5 X 22mm LENGTH INCLUDED.
10 MORE INSERTS ARE NEEDED WHEN DOING THE MAIN BEARING.
Click here: for video instructions

Order More Steel Inserts Click Here

Click Here for Instructions

PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES
best thread repair kit, best repair for threads, best repair thread repair,best threaded insert repair.
TIME-SERT is a thread renewal system
Easily repair stripped or damaged threads

TIME-SERT thread repair system the ultimate way
to repair threads in stripped or damaged holes.

The post Time-Sert J-42385-300 M10 x 1.5mm GM Northstar Mainbearing Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-j-42385-300-m10-x-1-5mm-gm-northstar-mainbearing-thread-repair-kit/feed/ 0 Time-Sert J-42385-2030 GM Northstar 2004/PV8 LH2 4.6 Thread Repair Kit https://www.threaddoctor.com/product/time-sert-j-42385-2030-gm-northstar-2004-pv8-lh2-4-6-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-j-42385-2030-gm-northstar-2004-pv8-lh2-4-6-thread-repair-kit/#respond Fri, 22 Sep 2023 15:40:02 +0000 https://threaddoctor.com/?post_type=product&p=4887 Time-Sert J-42385-2030 GM Northstar 2004/PV8 LH2 4.6 Thread Repair Kit. Time Sert thread repair kits made in USA. Time Sert J-42385-2030 Thread Repair Kits. In 2004 the NorthStar headbolt has changed to a M11 x 2.0 thread. For XLR General Motors, Cadillac & others Click here: for video instructions Order Carbon Steel Inserts Click Here Click […]

The post Time-Sert J-42385-2030 GM Northstar 2004/PV8 LH2 4.6 Thread Repair Kit appeared first on Thread Doctor.

]]>

Time-Sert J-42385-2030 GM Northstar 2004/PV8 LH2 4.6 Thread Repair Kit.

Time Sert thread repair kits made in USA.

Time Sert J-42385-2030 Thread Repair Kits.

In 2004 the NorthStar headbolt has changed to a M11 x 2.0 thread. For XLR

General Motors, Cadillac & others

Click here: for video instructions

Order Carbon Steel Inserts Click Here

Click Here for Instructions

PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES

TIME-SERT is a thread renewal system Easily repair stripped or damaged threads

TIME-SERT thread repair system the ultimate way to repair threads in stripped or damaged holes.

GM DOWEL PIN CLICK HERE

Two dowel pins are needed when repairing one side of the engine.  Four are needed when repairing both sides of the block

The post Time-Sert J-42385-2030 GM Northstar 2004/PV8 LH2 4.6 Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-j-42385-2030-gm-northstar-2004-pv8-lh2-4-6-thread-repair-kit/feed/ 0 Time-Sert J-42385-2000 M11 x 1.5mm GM NorthStar 2000 V8 Thread Repair Kit https://www.threaddoctor.com/product/time-sert-j-42385-2000-m11-x-1-5mm-gm-northstar-2000-v8-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-j-42385-2000-m11-x-1-5mm-gm-northstar-2000-v8-thread-repair-kit/#respond Fri, 22 Sep 2023 15:04:11 +0000 https://threaddoctor.com/?post_type=product&p=4878 Time-Sert J-42385-2000 M11 x 1.5mm GM NorthStar 2000 V8 Thread Repair Kit Time Sert thread repair kits made in USA. Time Sert J-42385-2000 Thread Repair Kits. M11 x 1.5 Headbolt This block is similar to the earily 4.0/4.6 but has two depths for the headbolts instead of 1 depth. 32mm upper bank and 51mm lower […]

The post Time-Sert J-42385-2000 M11 x 1.5mm GM NorthStar 2000 V8 Thread Repair Kit appeared first on Thread Doctor.

]]> Time-Sert J-42385-2000 M11 x 1.5mm GM NorthStar 2000 V8 Thread Repair Kit

Time Sert thread repair kits made in USA.

Time Sert J-42385-2000 Thread Repair Kits.

M11 x 1.5 Headbolt
This block is similar to the earily
4.0/4.6 but has two depths for the headbolts instead of 1 depth.
32mm upper bank and 51mm lower bank.

Click here: for video instructions

Order Carbon Steel Inserts Click Here

Click Here for Instructions

PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES

TIME-SERT is a thread renewal system Easily repair stripped or damaged threads

TIME-SERT thread repair system the ultimate way to repair threads in stripped or damaged holes.

GM DOWEL PIN CLICK HERE

Two dowel pins are needed when repairing one side of the engine.  Four are needed when repairing both sides of the block

The post Time-Sert J-42385-2000 M11 x 1.5mm GM NorthStar 2000 V8 Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-j-42385-2000-m11-x-1-5mm-gm-northstar-2000-v8-thread-repair-kit/feed/ 0 Time-Sert J-42385-120 M10 x 2.0mm GM Northstar Mainbearing Thread Repair Kit https://www.threaddoctor.com/product/time-sert-j-42385-120-m10-x-2-0mm-gm-northstar-mainbearing-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-j-42385-120-m10-x-2-0mm-gm-northstar-mainbearing-thread-repair-kit/#respond Fri, 22 Sep 2023 15:00:15 +0000 https://threaddoctor.com/?post_type=product&p=4867 Time-Sert J-42385-120 M10 x 2.0mm GM Northstar Mainbearing Thread Repair Kit Time Sert mainbearing thread repair kits made in USA. ONLY FOR A 5.7L AND NOT A 5.3L Time Sert J-42385-120 Thread Repair Kits. 10 Steel Inserts – M10 x 2.0 x 22mm LENGTH INCLUDED. 10 MORE INSERTS ARE NEEDED WHEN DOING THE MAIN BEARING. […]

The post Time-Sert J-42385-120 M10 x 2.0mm GM Northstar Mainbearing Thread Repair Kit appeared first on Thread Doctor.

]]>

Time-Sert J-42385-120 M10 x 2.0mm GM Northstar Mainbearing Thread Repair Kit

Time Sert mainbearing thread repair kits made in USA.

ONLY FOR A 5.7L AND NOT A 5.3L

Time Sert J-42385-120 Thread Repair Kits.

10 Steel Inserts – M10 x 2.0 x 22mm LENGTH INCLUDED.

10 MORE INSERTS ARE NEEDED WHEN DOING THE MAIN BEARING.


Click here: for video instructions

Order Carbon Steel Inserts Click Here

PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES
TIME-SERT is a thread renewal system
Easily repair stripped or damaged threads

TIME-SERT thread repair system the ultimate way
to repair threads in stripped or damaged holes

The post Time-Sert J-42385-120 M10 x 2.0mm GM Northstar Mainbearing Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-j-42385-120-m10-x-2-0mm-gm-northstar-mainbearing-thread-repair-kit/feed/ 0 Time-Sert J-42385-100 M11 x 2.0mm GM GEN3 5.7L V8 LS Thread Repair Kit https://www.threaddoctor.com/product/time-sert-j-42385-100-m11-x-2-0mm-gm-gen3-5-7l-v8-ls-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-j-42385-100-m11-x-2-0mm-gm-gen3-5-7l-v8-ls-thread-repair-kit/#respond Fri, 22 Sep 2023 14:57:36 +0000 https://threaddoctor.com/?post_type=product&p=4857 Time Sert J-42385-100 M11 x 2.0mm GM GEN3 5.7L V8 Thread Repair Kit. Time Sert Thread Repair Kits Made in USA. Time Sert J-42385-100 Thread Repair Kits. Time Sert GEN III M11 x 2.0 Head Bolt Repair M11 x 2.0 1997-2004 C5 Corvette base model 1998-2002 Chevrolet Camaro Z28, SS 1998-2002 Pontiac Firebird Formula and […]

The post Time-Sert J-42385-100 M11 x 2.0mm GM GEN3 5.7L V8 LS Thread Repair Kit appeared first on Thread Doctor.

]]>

Time Sert J-42385-100 M11 x 2.0mm GM GEN3 5.7L V8 Thread Repair Kit. Time Sert Thread Repair Kits Made in USA. Time Sert J-42385-100 Thread Repair Kits.

Time Sert GEN III M11 x 2.0 Head Bolt Repair M11 x 2.0

1997-2004 C5
Corvette base model

1998-2002 Chevrolet
Camaro Z28, SS

1998-2002 Pontiac Firebird
Formula and Trans-Am

2004 Pontiac GTO

1999-2005 Holden Commodare
as an option

1999-2005 Holden Statesman/Caprice

2001-2005
Holden Monaro

Click here: for video instructions

Order Carbon Steel Inserts Click Here

Click Here for Instructions

PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES

TIME-SERT is a thread renewal system Easily repair stripped or damaged threads

TIME-SERT thread repair system the ultimate way to repair threads in stripped or damaged holes.

GM DOWEL PIN CLICK HERE

Two dowel pins are needed when repairing one side of the engine.  Four are needed when repairing both sides of the block

The post Time-Sert J-42385-100 M11 x 2.0mm GM GEN3 5.7L V8 LS Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-j-42385-100-m11-x-2-0mm-gm-gen3-5-7l-v8-ls-thread-repair-kit/feed/ 0 Time-Sert GM 1812ECore M8 x 1.25mm Metric Extended GM Rocker Arm Thread Repair Kit https://www.threaddoctor.com/product/time-sert-gm-1812e-core-m8-x-1-25mm-metric-extended-gm-rocker-arm-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-gm-1812e-core-m8-x-1-25mm-metric-extended-gm-rocker-arm-thread-repair-kit/#respond Fri, 22 Sep 2023 14:53:09 +0000 https://threaddoctor.com/?post_type=product&p=4849 The Time-Sert 1812ECORE M8 x 1.25mm Metric Extended GM Rocker Arm thread repair kit includes tooling to be used in rocker arm thread repair where the threads must start a few millimeters below the ‘slot’. The Time-Sert 1812E CORE drill included will allow a special 11.7mm metric length insert with no flange to be installed […]

The post Time-Sert GM 1812ECore M8 x 1.25mm Metric Extended GM Rocker Arm Thread Repair Kit appeared first on Thread Doctor.

]]> The Time-Sert 1812ECORE M8 x 1.25mm Metric Extended GM Rocker Arm thread repair kit includes tooling to be used in rocker arm thread repair where the threads must start a few millimeters below the ‘slot’. The Time-Sert 1812E CORE drill included will allow a special 11.7mm metric length insert with no flange to be installed deeper than the standard Time-Sert 1812 thread repair kit.

The mechanic doing the repair will have to set the counterbore depth manually by hand. The five included Time Sert 18125117N inserts with a metric length of 11.7mm are held in place by the installation driver cold rolling the bottom of the insert, locking the insert in place.

If a repair has been made before and this is a second time repair, you must purchase the Big-Sert 1812CORE-BS thread repair kit.

Click Here For More Information

Click Here For Instructions

Click Here To Order Additional Inserts

Time-Sert 1812ECORE Thread Repair Kit Contains:

  • Step Core Drill w/ Collar
  • Tap
  • Insert Driver
  • Tap Guide
  • Metal Ruler
  • Hex Wrench
  • (5) Inserts With 11.7mm Metric Length, no flange – Part no. 18125117N

The post Time-Sert GM 1812ECore M8 x 1.25mm Metric Extended GM Rocker Arm Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-gm-1812e-core-m8-x-1-25mm-metric-extended-gm-rocker-arm-thread-repair-kit/feed/ 0 Time-Sert 9530 M11 x 2.0mm 2013 ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kit https://www.threaddoctor.com/product/time-sert-9530-m11-x-2-0mm-2013-ecotec-gen2-2-0-ltg-2-5-lcv-thread-repair-kit/ https://www.threaddoctor.com/product/time-sert-9530-m11-x-2-0mm-2013-ecotec-gen2-2-0-ltg-2-5-lcv-thread-repair-kit/#respond Fri, 22 Sep 2023 14:50:41 +0000 https://threaddoctor.com/?post_type=product&p=4839 Time-Sert 9530 M11 x 2.0mm 2013 ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kit. Time Sert GM ECOTEC GEN2 Thread Repair Kit Made in USA. Time Sert 9530 thread repair kit. General Motors ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kits by Time-Sert 2.0 LTG 2013 Cadillac ATS 2013 Chevrolet Malibu […]

The post Time-Sert 9530 M11 x 2.0mm 2013 ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kit appeared first on Thread Doctor.

]]> Time-Sert 9530 M11 x 2.0mm 2013 ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kit. Time Sert GM ECOTEC GEN2 Thread Repair Kit Made in USA. Time Sert 9530 thread repair kit.

General Motors ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kits by Time-Sert

2.0 LTG
2013 Cadillac ATS
2013 Chevrolet Malibu

2.5 LCV
2013 Cadillac ATS
2013 Chevrolet Malibu
2014 Chevrolet Impala

Kit Contains
  • Drill Fixture
  • Drill Bushing
  • Alignment Pin
  • Bolts (3)
  • Step Drill
  • Tap
  • Insert Driver
  • Inserts (10)
  • Loctite
  • Driver Oil

The post Time-Sert 9530 M11 x 2.0mm 2013 ECOTEC GEN2 2.0 LTG / 2.5 LCV Thread Repair Kit appeared first on Thread Doctor.

]]> https://www.threaddoctor.com/product/time-sert-9530-m11-x-2-0mm-2013-ecotec-gen2-2-0-ltg-2-5-lcv-thread-repair-kit/feed/ 0