AES is excited to offer an LT5 Big Bore Package for those ZR1 enthusiast who just have to have more power. Computer engineered to fit our custom sleeves, this block is truly an innovation. Included is a fully machined block which comes ready to assemble, pistons with choice of compression ratio, rings, and wrist pins. The block components include:

* Block is computer engineered to fit custom sleeves

* Custom AES Sleeves are CNC machined for a perfect fit

* Block comes fully machined and ready for assembly

* Block is line honed, square decked, bored, and honed with deck plates

* Package includes pistons with choice of compression ratio, rings, and wrist pins

* No welding on the block during build-up

* Can accommodate up to 4.165 Bore

* Up to 450 Cubic Inch

* Complete short block assemblies available

* Block package starts at $8500.00