Quote Originally Posted by joeoby78 View Post
...He rattled off the order and said 7.500 length and I asked him if that was right, he said that is what the rocker arms needed...
Hmmm...

Quote Originally Posted by joeoby78 View Post
The guy I bought the rockers from said the 7.500 is what they needed, but I am just wanting to make sure he is telling me right. The cam is ground on a base circle a hair shorter than stock, is what the guy at Thunder racing told me. The heads are not being milled.
I guess the rocker arm boss where the pushord meets has a higher contact point...along with the cam having a slightly smaller base circle (think 02-04 Z06 cam), then I guess 7.500 is right. And its TR, so maybe that is a cam package that they have... Lets just hope the cam is a custom grind and its not a re-grind. But if it is a re-grind, make sure it has had it's oven time for the heat-treat on the cam lobes...