TIME-SERT Head Bolt Thread Repair Kits

4:42 pm TIME-SERT Kits


© DenLorsTools.com Summary: Stripped headbolt threads may require the replacement of the engine block. With an increasing number of aluminum heads, damaged threads in blocks are becoming a more common issue than ever before. Included in this DenLors Tools auto repair article is a video showing how to repair head bolt threads right in the car or truck. A truly time saving head-bolt thread repair system made by TIME-SERT  which is approved by leading car manufacturers. See the “related section” for the different head bolt repair kits offered for sale.


The guide fixture that comes in the kit makes lining up for drilling very precise. Kits for GM NorthStar engines are some of the most popular thread repair kits we sell. With aluminum blocks, it seems to be common to have problems with head bolt threads when doing head gasket replacement. Heli-Coil (HEL1130) makes a lower cost kit for head bolt thread repair, however most tech’s we’ve talked to prefer the TIME-SERT brand. They also have over-size kits for repairing headbolt threads in engine blocks that have had Heli-Coil repairs fail. The over-size kits are branded by Time-Sert as “BIG-SERT.”  TIME-SERT is also sold as Kent Moore, referred to by “J” numbers in auto repair manuals. In fact the best way in most cases is to look up the repair instructions in a repair manual and use the recommended part number listed there. That’s how many repair shops find us. They type in the “J” part number into Google and do a quick search. What’s the difference between Kent Moore and TIME-SERT? The price. Sometimes the identical part number sold as TIME-SERT as opposed to Kent Moore is less than half the price for the same product. See the related links below to view our product listings.

Related Head Bolt Thread Repair Kits

TIME-SERT 2200 Toyota Head Bolt Thread Repair Kit
TIME-SERT 6001 Olds Aurora/Intrigue Headbolt Repair
TIME-SERT 6111 Ford 4.6, 5.4 Headbolt Thread Repair Kit
TIME-SERT 7111 Honda Headbolt Thread Repair Kit 11×1.5
TIME-SERT 7111BS Honda Headbolt Thread Repair Kit 11×1.5 Big Sert
TIME-SERT J-42385-2000 GM/Northstar Cylinder Headbolt Thread Repair Kit 11×1.5
TIME-SERT J-42385-2030 GM/Northstar Cylinder Headbolt Thread Repair Kit M11x 2.0
TIME-SERT J-42385-500 GM/Northstar Cylinder Headbolt Thread Repair Kit 11×1.5 


2 Responses
  1. Steve :

    Date: January 21, 2011 @ 12:54 am

    I completely agree! It is so easy to strip out threads on aluminum heads. This tool looks great. Thanks for the great article.

  2. dennisb - Auto Tool Sales :

    Date: January 24, 2011 @ 7:52 pm

    Click the following for the TIME-SERT 7580 for BMW:

    TIME-SERT 7580

Comment Below, Please Unlock Caps

Tell us your thoughts or ask a question. For best results please provide relevant details like your vehicle's year, make, model, engine size, the problem and when it occurs etc. - Comments need to be approved before they are seen by everyone. Notice we don't post Spam. Comment below (*SPAM, ALL CAPS & unrelated comments will be deleted). Click the following to view Dennis' "about page" for info on his background in automotive repair.

Please note: Your comment will not be posted until it's approved. We appreciate and read all on topic, relevant comments. Please don't ask for repair manual info like torque specs, wiring diagrams and specific repair procedures. If quick assistance is needed with purchasing a tool or part, please visit our tool website DenLorsTools.com or call to place an order at 800-524-9783. *Note we don't offer repair advice on the phone.