427ci LSx Competition Boosted Short Block
If you are looking to make huge power running boost between 20-30 psi then our LSx Boosted Short Block is for you. With Wiseco Forged pistons, Billet Steel Main Caps and Callies Dragon Slayer Forged Crank and Ultra H-beam Rods this short block will handle just about anything you can throw at it.
- The LSx Cast Iron Block will handle 30 psi of Boost
- 6-bolt head Design
- Billet Steel Main Caps with ARP Main Studs
- Base Price $8,499
- Spec Sheet