Generation IV Internal Engine - 4.8/5.3 crankshaft casting number




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domchevelle
07-15-2012, 11:46 AM
Hi,i buy 5.3 2009 ,and am not sure is 5.3 or4.8,:eek2: the piston is dish,the heads is 799,the casting number on crank shaft is 12553482 ,thank's
Dom.


jerryls7
07-15-2012, 12:09 PM
crankshaft part # 12553482
are you sure its out of a 09??
all gen IV engines have flat top pistons.

domchevelle
07-15-2012, 12:11 PM
yes is 09 or 2010 gen IV


domchevelle
07-15-2012, 12:31 PM
and the block is VVT.

LS1MCSS
07-15-2012, 02:24 PM
That casting number is a 4.8.

Che70velle
07-16-2012, 10:18 PM
I thought the 4.8's had flat tops?
799 heads? Is the engine aluminum or iron?