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turbo lcc 03-13-2007, 03:18 PM A buddy of mine just found out that he (the dealer thinks) cracked a piston in his 05 LLY with 90k on the clock. Any ideas what is causing this?? #6 is the one that cracked. Also are there any aftermarket pistons out for the dmax yet? bad04dmax 03-13-2007, 08:16 PM there are custom pistons out there for the duramax that i have read about on here. however, these were forged, i believe, and didnt have all of the oiling passages in the pston that the stock pistons do. you will probably find it if you do a search on here. ill pm you if i find the thread. i think the pstons were made by ROSS racing. bad04dmax 03-13-2007, 08:18 PM http://dieselplace.com/forum/showthread.php?t=111345&highlight=duramax+forged+pistons here is the link to the thread about the forged pistons i found. read it all before you make a decision. dmaxalliTech 03-13-2007, 11:04 PM Got Ross pistons on the shelf, not enough testing done on them to recommend them for a daily driver application yet. Have one set in an engine and so far so good. Have another engine going together with them now. TNRGreene 03-13-2007, 11:53 PM Got Ross pistons on the shelf, not enough testing done on them to recommend them for a daily driver application yet. Have one set in an engine and so far so good. Have another engine going together with them now. The LBZ pistons are they good for a daily driver with some playing on weekends? We get this tranny deal done so I can keep the black truck my next move will be you doing a motor. I want to have one built so when I shorten some rods...it's already done & waiting :D dmaxalliTech 03-13-2007, 11:59 PM The LBZ pistons are working well so far. So are the stock LB7/LLY pistons for that matter. TNRGreene 03-14-2007, 12:04 AM I'm guessing a little but the longer I can keep mine together the better my new engine should be? Fair statement from me? Basically someone else is testing this stuff & there will be more data available the longer we go. dmaxalliTech 03-14-2007, 12:13 AM Very True Todd, Very True 05LLY2500HD 05-09-2007, 06:56 PM Any updates on Ross vs. stockers? Or how the Ross are holding up? TNRGreene 05-09-2007, 06:59 PM Ya Eric any update, I have a feeling after June24th I'll be starting a motor. :D TNRGreene 05-09-2007, 07:02 PM Sorry I meant to say you'll be starting a new motor for me :) Jeez is it June yet. I haven't driven my truck in 3 weeks & it's still not done yet!!! I have 37 miles on the new Allison though dmaxalliTech 05-10-2007, 12:52 PM Motor is here for the Ross pistons, not torn down yet though 05LLY2500HD 05-14-2007, 06:32 PM Motor is here for the Ross pistons, not torn down yet though :D Just curious on pricing and how they're working so far, I know you're busy and all. Again congrats on the times. Thanks. TNRGreene 05-14-2007, 10:23 PM Motor is here for the Ross pistons, not torn down yet though It's been a few days.....well?:D Slacker...LOL dmaxalliTech 05-14-2007, 10:27 PM Motor still sitting here.. Its in line. TNRGreene 05-14-2007, 10:58 PM Motor still sitting here.. Its in line. I hope it's not like my normal answer. I tell them I'll move it to the top of the page....page 6 :eek: :D :lol: On a serious note, congrats on your motor Eric | ||