I have two 300hp Hammerhead diesels from performance products technologies of stillwater ok. both engines have cracked blocks and heads after 100hrs use. i have an associate who installed these same engines in an identical boat as mine and he has had 3 engine blocks crack. the company claims...
I have 2 marinedieselusa 6.5l engines with catostrophic failure. these engines failed in less than 100hrs. the company that sells them is performance products technologies in stillwater ok. they will not honor the warranties on these engines.my blocks cracked and so did the heads. anyone who has...
