Originally Posted by
2001TEGGSR
I didn't know that AEBS offered an option. I thought they always used a closed deck design.
As far as the 4G63, it was a cast iron block up until 2004. I always took the stand point that it was designed to be turbocharged, the block is much stronger. Heat will warp an aluminum block much quicker.
Honda blocks (including OEM sleeves) have been proven over and over to be reliable under a healthy a/f ratio. Reason why people experience warp often is leaning it out. There are many 10-11sec stock block Hondas out there. The only reason why they have to rebuild is the OEM rings are the weakest link. Other than that, the blocks are still smiling.