this has entered my mind but the noise is just like an old bus really load i would of thopught far to load to be that..

the first time this started i had just changed the head gasket wen i started it it was perfectly quite, i drove down the ro0ad as i was driving it was getting loader and loader, by the time i got about 10 miles it was so load and shaking i had to tow it home, thats wen i stripped it, first thinking it was top end, then sow that the bearibgs were ready, i don't know what else can where that fast, cheers