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Old 03-26-2012, 09:57 PM   #9
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Join Date: Feb 2006
Location: DFW
Posts: 5,735
My Ride: ESS TS2+ ZHP
The M54 and S54 are just fundamentally different motors. The M54 probably has more in common with the S52 than the S54, as the m54b30 uses the same crank as the older S52. Like the S54 though, the S52 also used an iron block.
04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump

Last edited by TxZHP04; 03-26-2012 at 10:13 PM.
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