Concept Performance 39s Aluminum LSR Block Can Take 1,500 HP
Concept Performances New Aluminum LSR Block Can Take 1,500 HP. When it comes to making massive power with an LS there are a lot of aspects and tradeoffs to consider. While the LS is a capable performer right out of the box, it does have its limits when you start to turn things up. Until now, you could only push the aluminum block so far.