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Increase Power and Improve Reliability on Your Chevy LS3 with Edelbrock Victor 11-Degree CNC 6-Bolt Cylinder Heads

Your boosted Chevy LS3-based engine makes loads of power, but it chews through head gaskets like it’s at an all-you-can-eat buffet. Conventional wisdom says to turn down the boost, but the hotrodder in you says it’s time to ditch your 4-bolt clamp heads for Edelbrock Victor 11-Degree CNC 6-Bolt Cylinder Heads and keep the boost pumping. 

The 6-bolt-per-cylinder design of the Edelbrock Victor heads distributes the clamping load over a wider area, providing a more secure seal against the head gasket. The additional clamping force also aids significantly in head gasket retention, preventing leaks or blow-outs in high-compression naturally aspirated and highly boosted, forced induction engines.

And that’s not all. Eleven-degree valve angles, along with CNC-machined runners and combustion chambers, improve airflow capability. A revised water jacket system enhances thermal conductivity and tunability, and premium manganese bronze valve guides improve valve seat concentricity. That allows the valves to seal securely to increase cylinder pressure and eliminate leak down. 

Other features include:

  • Made from premium A356 aluminum
  • Machined to the industry’s tightest tolerances
  • Copper-infiltrated powdered metal valve seats
  • .700-inch-thick decks
  • Reinforced rocker rails
The Edelbrock Victor 11-Degree CNC 6-Bolt Cylinder Head for Chevy LS3 is sold as a bare casting so racers and engine builders can install the valvetrain and spring package that suits their needs. It is compatible with the GM LSX blocks as well as other aftermarket cast iron and aluminum engine blocks designed to accept 6-bolt-per-cylinder GM LS cylinder heads. Heads sold individually.

SEE THE EDELBROCK VICTOR 11-DEGREE CNC LS3 6-BOLT CYLINDER HEAD AT SUMMIT RACING