Harland Sharp Rocker arm failure!!!
 

Well I had plans to upgrade the rockers on the engine I took out of the blue car which is good because we wouldn't have found this!!! I only turned this engine to 6400rpm and these only had about 6500 miles on them... Guess I'll be taking harland sharp up on their "lifetime warranty" Thanks again to HHP for all their hard work.... BTW this one was the worst but found hairline fractures on 2 others

http://i45.tinypic.com/ixfll1.jpg

In case you haven't checked yet, make sure you aren't getting into any coil bind on your springs, or having your retainers bottoming out on your valve stem seals. Might want to check pushrod straightness if you find any of the above.

upgrade to what? T&D or Jesel on a 300hp motor? somethings wrong

never had an issue with mine that i bought used. I turned my to 6600-6800 and a few time to 9k

Went to Yella Terras.

300hp? That's more in the V6's range ;)