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Thread: What are the differences in the 5.3L?

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  1. 03-03-2008 08:38 PM #1
    LS6 Silverado's Avatar
    LS6 Silverado
    LS6 Silverado is offline Junior Member
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    So am I understanding this- They say the newer L33 5.3L uses the LS6 cylinder heads. The 243 casting I presume? Wonder why they say on GM parts direct that LS6 heads will not fit the 4.8 or 5.3 due to the bore being to small. Would really like to put a milled set of 243's on my 5.3- Anyone done anything like this?
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  2. 03-03-2008 08:48 PM #2
    newchevy
    newchevy is offline Don't Blink, Don't Think
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    hey jasyc240sx, my girlfriend drives a 95 240sx and it needs a new engine bad!!! are you planning on selling the one out of your 240 or what?

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