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aluminum/steel 5.3s

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Old 10-13-2006, 06:08 PM
  #11  
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so could you bore a 5.3 to a 6.0?
Old 10-13-2006, 06:42 PM
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no you cant bore a 5.3 to a 6.0... i think max on a 5.3 is 5.7 ... get a 6.0 if your going to do a swap...
Old 12-04-2006, 10:00 PM
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Sorry to revive this. What's the weight difference between the iron blocks and the aluminum?
Old 12-04-2006, 10:10 PM
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110lbs.
Old 12-04-2006, 10:11 PM
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The aluminum block 5.3's (L33) are about 100 lbs lighter then the iron ones, They are a option on 05 and up 1500 ECSB 4x4's only.
Old 12-04-2006, 11:05 PM
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wow, trever1 your truck is awsome, if I had the funds I would be doing the same thing to mine.
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