I have the proto-type crower shaft units and used them for 3 years now. U can get them in stainless or now in aluminum (so I am told). I had used crowers like these in extreme off-sets in sbc motors w/ welded/re-shaped intake runners, and have yet to see a failure or have an issue w/ reliability. I would opt for the aluminium units over stainless for the more aggressive Hyd. rollers.
Another thing to consider is that these require machining the rocker bosses on the stock heads, while aftermarket head provide the proper surface and supply u with the proper stands if u choose to run stock-type rockers.
__________________ '06 Z06 441ci LS7, ETP heads, Crower Ti rods, shaft rockers, diamonds, 4L65e, 3800stall, 3.42 gears 10.09@133mph 1.38 60' N/A 330shot 2-stage w/ Daves' stand-alone, chasing 8s
09 ZR1, 649 ftlbs to the tire (thanks Geoff @ EPS)
Originally Posted by Auto Zone Slimm
90% of the racers around here couldnt spin the tires "all the way down the track" even in the rain
I have the proto-type crower shaft units and used them for 3 years now. U can get them in stainless or now in aluminum (so I am told). I had used crowers like these in extreme off-sets in sbc motors w/ welded/re-shaped intake runners, and have yet to see a failure or have an issue w/ reliability. I would opt for the aluminium units over stainless for the more aggressive Hyd. rollers.
Another thing to consider is that these require machining the rocker bosses on the stock heads, while aftermarket head provide the proper surface and supply u with the proper stands if u choose to run stock-type rockers.
Can you post up a picture of these please?? I would love to see some pictures that are better than what I have seen earlier..
LS7 rocker arms 
