This is a 428ci World Warhawk LS based Short block. It is currently not assembled but can be shortly. The block is a never used aluminum World Warhawk LSX with 6 bolt head capability. The crank is a factory forged light bob weight LS7 crank. Rods are LS7 titanium that have been sent to Katech and have been bushed to fit .927 piston pin along with upgraded Katech rod bolts. Pistons are Mahle forged flat top pistons with +3cc valve reliefs. All the machine work is done and the rotating assembly has been balanced. This motor was being built as a quick and high revving street motor. I no longer have the project I was building this motor for and putting it for sale. I have well over 11k in this motor not counting assembly. $8500 assembled and $8000 if you would like to assemble. I can ship and have a engine shipping box.