I bought a set of Yella Terra shaftmount rockers (YT6640) off a guy on ebay..advertised as new in box. When my engine shop started final assembly, he found we were short 1 rocker bolt (7/16") and 2-pedistals. The seller won't respond to my emails. Whether he does or doesn't at this point doesn't really matter because they have to have the parts tomorrow (Wednesday at the absolute latest). I have called YT and am trying to get them to overnight me the missing parts, the main tech guy is doing a seminar at a trade show and IDK how quick he will do what he needs to do. Anyone have thoughts. I haven't really seen any shop have them in stock per se for me to just be able to order them and have them shipped next day. Nor is anyone willing to break a set to give me parts i don't imagine. I am open to going with a totally different rocker arm, but it has to be a 7/16" stud, as these heads have now been drilled for 7/16".

Any thoughts?

Yella Terra came through for me. I called them and they overnighted me a bolt and 2 pedistals, along with a set of valve cover spacers....and they covered the cost. I will say this, they exceeded my expectations. Based on this level of service, I will certainly use Yella Terra again.

Nice to hear that Yella Terra has real customer service when so many in this day and age just want you to keep pressing keypad numbers until you either resolve your problem or just go away.

I broke one before they took care of me as well.
Only thing I didn't end up liking was how heavy the LS rockers are.

FACT...my new motor peaks at 6k...with trunion upgraded stockers it would probably carry to 7k.