Heard a ticking sound on the drive back from racing at Barona the other weekend and thought it was just an exhaust leak from the gaskets from the cutouts. Replaced the gaskets and the ticking didn't go away so I pulled the driver's side valve cover and saw the the pin holding the roller tip on the cylinder #7 intake rocker had broken off, the roller tip was missing and the top of the valve stem was just hammering into the rocker leaving a nice ding:

Luckily it didn't drop a valve and I found all the missing pieces in the top of my cylinder head. I still have to take the rocker off and see if my retainer took a beating.

This happening with a mild hydraulic cam with valve spring pressures of only 130/300, no over revving, never revved much past 5,000 rpm. They lasted about 3,000 street miles and over 130 1/8 mile passes with no indication of trouble before this. My last pass of the day was within a few hundreths of a second of my best pass ever. Then on the drive home the pin broke and let go.

I could just replace the one bad rocker for $25 and be on my way but I don't have a good feeling about running these rockers anymore.

My choices have boiled down to finding a set of used ductile iron rockers from Crane or Isky (around $300) or buying a set of new Crane ductile iron rockers from Summit:

https://www.summitracing.com/parts/crn-64770-16

At a cost of $470 the Cranes from Summit don't come with shafts, hold downs, or spacers so I'd have to piece together that stuff and add it to the total cost.

I'm also thinking of these re-branded sets that Mancini Racing sells that are made by Harland Sharp that come with everything for $511 and are available in both 1.5 and 1.6 ratios:

https://www.manciniracing.com/b15alrowibih.html

What do you guys think?

Also, which one of these do you think I'd have a better chance of being able to use my current pushrods because they will still be the correct length needed?

Thinking about going to a 1.6 ratio if I end up getting the Mancini set because I'm thinking of upgrading from my stock iron 452s to E Streets and a 1.6 ratio would give my .534 lift cam .569 lift which might take a little better advantage of the better flowing heads.

Thanks in advance for any advice!