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Old 05-24-2012, 08:50 PM
irnwkrkev irnwkrkev is offline
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Don't forget if going to a cam as large as the 274 you're going to need :

valve springs
stiffer pushrods
non-MDS lifters
MDS solenoid plugs

The 6.4 has different :

MDS lifters ($400 at a discount parts house)
Springs ($100+)

The 6.4 has the SAME:

timing chain
spring retainers and locks
pushrods
rocker arms

Anyone know if the head bolts are TTY (torque to yeild)? That would require new bolts.
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