6.1L Drag Pak Racers

NHRA has approved use of the Mopar aluminum block (PN P5153898) as a replacement for the iron block (PN P0503747AC) in Factory Stock Classes. At this time, the cast iron block is only available as a long block assembly (PN 68253461AA) and not as a bare block. Legal stock class heads are PNs 51706020AA and 5170621AA.

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