The Compstar cranks from Callies are the perfect entry level crankshafts for anyone looking to upgrade from an oem unit or are starting an new engine build from scratch. We have used plenty of these cranks in builds seeing over 1000hp with power adders that havent showed any sign of failure. 
 
Compstar LSx's are Counterweight Prepped for a 1785 Bobweight  
- Gun Drilled Mains
- All Rod Journals Lightened
- Dual Linear Post Keyways 
- Heat Treatment 
 
*OEM 24 tooth shipped loose with crank (requires customer installation)