SBC/BBC vs ls

[nokones]

Instead of putting a LS in my 89 C4 Corvette, I decided to stay with a SBC design and went with an all aluminum Dart block for the weight savings. Lingenfelter built a 427 ci with 646 up at the crank and will spin up to 7600. The engine was designed for autocrossing and I am glad I stayed with the Gen 1 family engine. The Dart block will be a lot more durable than a factory LS block.