Roush 427 & 402 Differences

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#13 (permalink)

03-02-2009, 04:56 PM

BRYCE

CC Member

Join Date: Jan 2005

Location: Dana Point, CA

Cobra Make, Engine: SPF #2056, 515 HP ROUSH 402R

Posts: 69

Not Ranked

According to the specs, 402r and 427r are very close. Idle is right on at 1200 rpm for mine. Roush makes a great engine. Very happy with mine over close to 8,000 mile

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