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Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

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just wondering hp rating for duramax lly pistons push rods connecting rods... JOIN NOW TO REMOVE TRACER

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Old 12-07-2012, 09:52 AM
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matt high bajachevyhigh

Default duramax lly bottom end

just wondering hp rating for duramax lly pistons push rods connecting rods

bajahigh's Sig:99 chevy 400xxx miles 6.5 diesel 40hp marine injectors, air intake 4in straight pipe 80hp ssd chip pmd and #9 resistor fuel pump screw

2004 chevy duramax LLY edge evo ht chip 238xxx miles
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Old 12-08-2012, 03:33 PM
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This is different for every engine but most would say you are in the danger zone when you approach the 600hp mark, then you better start thinking about head gaskets, studs, rods, pistons, etc.

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Old 12-08-2012, 03:41 PM
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I would defineatly look into headstuds. But at 600HP and good EFI tuning by Idaho Rob or the guys at Duramax Tuner you can safely run at those power levels.

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