[ls1nova71]

I don't have an opinion on Dirty Dingo mounts since I've never used them. I usually build my own so I can put the engine exactly where I want it, and I usually center the fan in the factory fan shroud. This is out of some peoples abilities though, so motor mounts that have some adjustability to them could be beneficial. However, if you can cut out and drill holes in metal, the standard conversion mounts are not that hard to make, or for that matter there are real cheap plates on Ebay. I will say this though, I wouldn't let drive shaft length dictate where you place the engine, put the engine where it needs to be and have the driveshaft made/shortened to fit.