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for the after market blocks what would be a better choice. what holds up better. advantages and disadvantages. can aluminum blocks really be rebuilt after some explosions or catostrophic failure.


advantages iron is 3,000$
and disadvantages aluminum is 6,000$




So thats your only disadvantage?

i am not sure i dont have any experiance with the aluminum blocks.
how about availabillity?
how about lifter bore sleeving?[any issues?
can barings spinning?block growth?
maintainance with valvetrain?block and head growth with heat?
are there any drawbacks in these areas?