Need advice

[EXH1X5]

Late engine production '99 blocks received the reinforced #8 blocks, however there were a number of left over '99 engines used in 2000. The only sure way to know is to get the production casting off the right rear of the block.

Ever consider the possibility there were more than ONE fix for the #8 cylinder problems!

Consider the first fix in 1999 as a "Band-Aid" type fix to the block casting to ensure continued 6.5L manufacturing to support AMG’s Military HMMWV/HUMVEE production as well as other applications AND to produce 6 engines for GM Powertrain (3 for durability and 3 for cold/hot cycle testing) to prove or disprove that first fix.