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I’d say the big reasons to go aluminum over iron are:
you could shave a couple 10ths off of your 1/4 time.
Second reason would he weight transference. The third would be because you just want it to look trick and the last would be because you’ve got several thousand dollars extra you really want to splurge on an aluminum block.

If i had an unlimited budget, I’d probably go aluminum myself. For most folks I think that the few thousand dollars you can save on an iron block would be better spent into other upgrades.

 

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@Pragmatist forgive me, when he said aluminum I most certainly thought “aftermarket SBC” or bbc, not ls and fwiw if there was a choice between iron or aluminum at the same price I would take aluminum

 

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@xxdabroxx they are awfully cool…And despite working in Information Technology for more than 20
years now and dealing with computers and data…I really struggle with relying on computers to run a motor.