![]() There are definitely teething issues.Īs for comparing it to the 400hp 1.6L block from honda? The 1.6L needs to be filled or at least studded to handle it. This marks the first time american manufacturers have built a production engine with enough meat on its bones for very high hp levels with this level of adjustability and this many cams. I doubt there is a problem with the structure, but the more hp you make the smaller the window becomes to correct mistakes or even notice them. High egt's = very high cylinder pressure. I personaly would pay closer atention to egt's at that power level than lambda. sure way to kill power and send metal shards everywhere. Want to send cylinder pressure up? run lean, knock, ignition advance. You can pop a fully built block that is supposed to handle over 1000hp with less than 500hp if you send the cylinder pressure way up. By way of harmonics/bad tuning/machining too much. Witch does make boring out not a viable option. The 5.0L block seems to have thinner sleeves. Didnt stop people from revving them to over 9k though. However it does have oiling issues at high rpm. ![]() The 3v block is stout as well as lighter than the old 4v aluminum block. The 4.6L 3v block was capable of handling well over 1500whp form what I have seen. However the rod to piston ratio on a 4.6L block is more favorable Teskid sp? was said to be able to handle is excess of 2000whp when built right. ![]()
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