Sea Cross Pistons [Archive] - Scream And Fly Powerboat and High Performance Powerboating Discussion Forums

steve

11-06-2003, 05:02 PM

Anybody run these yet? They were supposed to be the same as the Pro Marines' but are they different? How many rpm have you run them? Thanks

Propelled Marine

11-07-2003, 09:01 PM

If anyone has ordered Pro pistons 2500 series (Mercury 2.5L) or Pro Pistons 4600 series or 3100 series (Yamaha). You'll see they come in a SeaCross Box.
Also check the stamp inside the piston and you'll see "SeaCross" stamped in the Mercury pistons and "ART" stamped in the Yamaha pistons.
We both import these same pistons.

If anyone has used them I would love to hear about it.

Superdave

11-08-2003, 04:37 AM

or forged?
Dave

Propelled Marine

11-10-2003, 12:19 PM

They are a hyperutectic Cast piston. Which means they have a hi-silicone content, about 18%. You could say they are a hi-perf cast piston, a notch above regular cast pistons but not quite like a forged piston. They run great but I wouldn't take them to 10,000rpm.