Offshoreonly.com - New Engines: 557 or 572

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- - New Engines: 557 or 572 (https://www.offshoreonly.com/forums/general-boating-discussion/142981-new-engines-557-572-a.html)

ratman

10-17-2006 06:46 PM

Re: New Engines: 557 or 572

Quote:

Originally Posted by Strip Poker 388

Your saying a the bore and stroke the same??? :eek:

572 4.5 X 4.5

ratman

10-17-2006 06:48 PM

Re: New Engines: 557 or 572

Quote:

Originally Posted by Tapa11

Are the solid rollers really worth the trouble?

what trouble, once they are broken in and adjusted once nothing should change if it does, you will know you have a problem before the big bang happens

ratman

10-17-2006 06:51 PM

Re: New Engines: 557 or 572

Quote:

Originally Posted by WARPARTY36

Just go 1075's and forgeettaboutit! :drink:

yeah forget about it...top end every 50/60 hours, total rebuild every 100/110 hours...forget everything but your check book! also you will want to get another boat so you'll have something to run when your motors are being freshened up mid season :eek:

Panther

10-17-2006 06:55 PM

Re: New Engines: 557 or 572

Quote:

Originally Posted by ratman

572 4.5 X 4.5

Can someone confirm or deny but I understand the 572' has a less than optimum rod-to-stroke ratio.

mikes280

10-17-2006 07:15 PM

Re: New Engines: 557 or 572

that would depend on rod length, i do not like a square engine

36spectre

10-17-2006 07:20 PM

Re: New Engines: 557 or 572

yes Rob !

36spectre

10-17-2006 07:22 PM

Re: New Engines: 557 or 572

bingo...... Panther!!!!

Panther

10-17-2006 07:24 PM

Re: New Engines: 557 or 572

Quote:

Originally Posted by mikes280

that would depend on rod length, i do not like a square engine

I believe a 6.535 is std. on a 572 with off the shelf parts and gives it a bad rod/stroke ratio, no?

mikes280

10-17-2006 07:26 PM

Re: New Engines: 557 or 572

Quote:

Originally Posted by Panther

I believe a 6.535 is std. on a 572 with off the shelf parts and gives it a bad rod/stroke ratio, no?

yes that is 400 long but you can go longer

Comanche3Six

10-17-2006 07:28 PM

Re: New Engines: 557 or 572

Great thread! Keep going, I'm learning.

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