Good Deal ?

I think these are a better rocker arm for cheap. Have used 2 sets of these in street engines. Worked fine but never put a big spring to them.

http://www.ebay.com/itm/Small-Block...MANCE-RACE-STREET-/170752177538#ht_698wt_1399

No. Those suck even worse than what the OP posted. Look at the aligning tabs under the roller tip. That can come in contact with the spring retainers and unkey the valves. Bad day if that happens. I cannot understand for the life of my why they make Chrysler rockers with those aligning tabs. That's not how they align. I guess they put um on chebbies and all the other junk so they just put um on those too.

To the OP, get cheap parts if you want. I would run stone stock rockers first.