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Aluminum head bolt threads pulling out on Polaris engines is a fairly common problem. Installing a solid bushing-type steel insert is the best fix. Avoiding the expense of some of the larger kits designed for automotive applications is a smart way to save money and still get a quality repair. The larger Time-Sert kits, for example, are designed for doing repairs when the threads start down several inches. With threads flush or near the surface, a much less expensive kit made by Time-Sert can be …

We had a recent customer that asked this question.Question - I need a big sert for a 2000 Chevy Silverado 5.3 . Stripped insert already or damaged not tightening. Which kit do I need to fix the head bolt threads on a 2000 Silverado with a 5.3 for a second time repair when a Helicoil has failed? Answer - The oversize kit for a second time repair when a Helicoil has failed, on a 2000 Chevy Silverado with a 5.3 Liter which uses an M11x2.0 head bolt size is the 3700BS. For others …