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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: In this article we cover a common question that we receive on the phone and in email inquiries. What’s the difference between the Calvan 38900 and the Time Sert 5553? The Short Answer – Calvan and Time Sert are completely different brands. The Calvan spark plug thread repair kit has a more limited application coverage. The Calvan 38900 primarily works on Ford 4.6, 5.4 and 6.8 SOHC engines 96-2003, on some models up to 2017 excluding 3V and DOHC engines. Time …