Knowing that this is normal practice with motor swaps and rebuilds on boats, I can see where you may want to do this, however, in this application, it does make it appear that something shady may be going on. Probably not the best idea, even if you could do it.
Fortunately, you can not change engine hours, even with Megatech. If you want more info on what Megatech is capable of doing, check out the Megatech user manual. It is pretty interesting what it will allow. This is a direct copy and paste from a Megatech info page.
what is Megatech key ?
Megatech key is an advanced key wich opens up many features not available to the ordinary dealer!! , changing VIN numbers , disabling DESS theft systems and advanced diagnostics are just some of the things megatech opens that they don't want the ordinary dealer messing with!! megatech will also allow timing curve and rev limiter changes on some 2 stroke models
Megatech WILL NOT change fuel or timing maps on 4 tec applications nor will it change total run hours on any product.
Megatech Key Features:
1. Changing the VIN, MODEL
2. Advanced settings
3. View History in hours, rather than percentage
4. Enabling / Disabling DESS
5. Change the key type
6. Clearing history block ECM, MPEM
7. Cleaning unit ECM, MPEM, CLUSTER "as new"
8. View more information blocks
9. Installing Secure Code
10. Edit Timing curves for 2-Stroke vehicles