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      06-15-2011, 05:01 PM   #41
elp_jc
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Another important distinction is the S65 is a true (probably the last) M engine. The 1M is just a souped-up version of the N54. ANd same thing with the M trucks and the M5/6; just a variant of an N engine.

Last edited by elp_jc; 06-15-2011 at 05:17 PM.