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Originally Posted by racedraper
well im getting Kieth black hyper soethig 909's but I cant use my stock rods cause they are pressed in pins. so Im in the market for floating ones if anyone has them.
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You probably don't need to float the rods. The piston/pin clearance is the same in a press fit or float, the only difference is in the rod/pin clearance. Just press fit the pins in the rods as usual and leave the retaining clips out.
As for the strength of hyper pistons, you shouldn't have an issue. Ford uses them in the 460 crate engine with 545lb/ft and 550hp at 6250rpm. I use hyper pistons in my 514 Workhorse crate engine that makes 453hp and 581lb/ft and have no problems. If you follow the KB clearance and ring gap guidelines closely you should have no problems.
That being said, I think regular cast pistons would be fine for your application and a little less expensive too. I've personaly run them in 429's set up the way I outlined above for 50,000+ miles of street/strip style driving and never had a problem.