03-08 5.7 Block = 53021319AC /AG /CB no real differences.
05-2010 6.1 Block 503788AB , some core shift issue in the later blocks
6.2/BGE block casting # 682491AA , great block, only real issue is the VVT but there are cams coming out for this VVTs and it's not the issue it use to be.
I have a timing chain that eliminates the cam phaser that I'm trying to bring to market.

the other block casting#s or part # I don't have in front of me right now.

The Ideal block would be a 6.2/BGE block with the 6.1/pre Eagle 5.7 cam structure.

Dave Web @ Modern Muscle Extreme would be the guy whose Ear you want to bend.

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