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Old 09-14-2006, 05:55 PM
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nitro_baller4692 nitro_baller4692 is offline
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hard block is lighter ten cement,i have done this on a cracked 5.0 block but i would say it was not quite half filled.as long as your not sitting in dead stoped traffic for an hour you will be ok.
what is your set up before i say that?
it helps stenghten the block but i did it for other reasons,other then that it was on truck pullin engines big block chevy and they were completly filled heads and all.they made about 2200-2500hp.
i would not do it just for a street rod
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