fastdonzi,i have used eagle rotating assemblys in many marine applications[supercharged]800 to 1000 hp,have not seen any failures.i always use the arp2000 bolt for marine application.imo the eagle rod with arp2000 bolt spinning 6000 rpm with 1000 hp is not a problem.

endeavour,i have a set of used manley h beam rods with arp bolts i will sell you.400. plus shipping.they came out of a 509 that was upgraded to a 540.

Mike-
I'd be interested in your rods but my pistons are press fit and I don't want to replace the pistons. Is there a way to convert either that is friendly on the wallet?

Fixx
 

impossible,the rods have a bushing in them and press fit don't,..look for a good set of I beam or dimple rods with arp rod bolts,just make sure you prestretch the rod bolts before assembly.

Thanks for the info. I really like the Carillo K1's. I think I'm going to go that route. For 299.99 that's a great deal.

end,no cheap way,but keep this in mind,YOU GET WHAT YOU PAY FOR.good luck with your build.:coolcowboy:

If you are planning turning over 6k in your boat, don't worry about those rods so much, we have drag raced 3/8 std chevy B/B rods in several engines with many many runs spinning them to 65-6800 all the time, never a issue. What you need to concern your self is the drive....that will fail first at that RPM, my advice is to set the engine to operate at a max or 55-5700, things will work much better...Rob

Fixx
 

Spend the extra coin on the arp 2000 rod bolts..My friend chris @ nelson's racing engines in fl uses k1 rods all the time and never had any issues..supposedly merc 525's have the h beam style k1's in them..so I'm told.

a friend ran his stock GM rods to 6K rpms for several seasons without any issues but I seem to remember 5800 is about max for them. After he sold the boat I think a rod let go so it's pushin it!