2005 up 6.0L Block casting numbers??
#3
TECH Fanatic
iTrader: (1)
Just as Joe said, to truly identify what year block you have, you will have to read the date code and not try to just rely on the casting number. Below are just some examples of casting numbers GM used for iron 6.0L’s.
12551364...364...99-06...crossbolted cast iron, Gen. III, 6.0L, truck
12573581...364...99-06...crossbolted cast iron, Gen. III, 6.0L, truck
12577184...364...99-06...crossbolted cast iron, Gen. III, 6.0L, truck
12551364...364...99-06...crossbolted cast iron, Gen. III, 6.0L, truck
12573581...364...99-06...crossbolted cast iron, Gen. III, 6.0L, truck
12577184...364...99-06...crossbolted cast iron, Gen. III, 6.0L, truck
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#8
on the passenger side of my block (bottom, next to oil pan across from where the oil filter is on the other side of the motor) it is stamped 12573704
I have googled the hell out of this serial number/casting number and cant figure out what type of block it is.
I have 241 heads, aluminum V8 block and truck intake
It is literally driving me crazy that I cant figure out what type of car/truck this motor came out of.
Please help!
I have googled the hell out of this serial number/casting number and cant figure out what type of block it is.
I have 241 heads, aluminum V8 block and truck intake
It is literally driving me crazy that I cant figure out what type of car/truck this motor came out of.
Please help!
#10
you must be right about the oil pan because the numbers match.
I wish someone had a picture of where the serial number is on the block (i am told near the oil filter) so I can easily find it.
I wish someone had a picture of where the serial number is on the block (i am told near the oil filter) so I can easily find it.