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WiseAutoTools.com © Summary: The image above is for the ES72220 replacement head bolts available at O'Reilly Auto Parts, we have the best thread repair kits. If your Chevy engine uses this size bolts, the thread repair kits we sell to fix threads in the block are the M11x2.0 3700 (or 3700BS) and M8x1.25 1812CORE-PLATE. For M12x1.75 we have the 42385-50 head bolt thread repair kit. More on this below. LS engines with stripped threads can be repaired with Time Sert kits for the b …

WiseAutoTools.com © Summary: The short answer is that "fine" threads are stronger than coarse threads. Without getting too technical we will explain the advantages of using fine threads compared to coarse threads, especially for automotive applications. Coarse threads do have their place for certain applications, we cover that too.Coarse Threads - Fewer threads which are further apart. Wider distance between crests as pictured above.Fine Threads - More threads than coarse and are closer tog …

DennisB WiseAutoTools.com © Summary: We are commonly asked about the differences in Time Sert and Heli Coil brand thread repair kits. In this article we cover ten main differences between these two brands. First, I will say that they have some things in common. Both brands have a large selection of sizes available. Both can be used to fix threads that have been damaged from cross-threading, over-tightening or vibration due to being too loose. Both brands have been around for a long time …

DennisB WiseAutoTools.com © Summary: Chrysler, Dodge and Jeep with the 3.6 Pentastar engine has a common problem of blown head gaskets due to the aluminum threads in the block failing for the head bolts. There may only be one or two bolts that have stripped head bolt threads in the block. However, we recommend replacing the threads for all 16, so that it will be less likely to have a repeat problem. No one wants to have to remove a cylinder head a second time, when it can be avoided! Below are s …

WiseAutoTools.com Summary: We cover how to check the spark plug size, to help determine which is the correct repair insert for fixing stripped spark plug threads. We explain how to measure the diameter, thread pitch and reach as well as an easy way to determine the seat type. All important factors when choosing a thread repair insert and kit for repairing blown out spark plug threads. The simplest way to determine the size is to look up the spark plug for your vehicle on a parts store website an …