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5.3 Cast Iron Block (LY5, LMG) vs. Aluminum block (LC9)
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mozeby
New User
| Posts: 3
| Joined: 01/09
Posted: 09/30/09
01:29 PM
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Hi guys. I'm looking at ordering a 2010 Suburban and am a little confused about some engine choices. There is a 5.3 iron block that's standard in the 2wd, and a optional flex-fuel version of the same iron block. In the 4wd there's a aluminum block version. The iron blocks are slightly higher rated (10hp) but are there any reasons or concerns with either version? Any problems with the flex-fuel versions? Thanks for your help.
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mpayne
Administrator
| Posts: 236
| Joined: 10/07
Posted: 10/01/09
10:06 AM
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The only problem in flex-fuel is the availability of fuel to flex. E85 is not available anywhere in California. So if your a Cali resident then your stuck till the gas companies get there head out of are @sses.
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