E- Street LS1/LS6 210cc 2.000/ 1.600 - Dual Spring Hyd Roller .660 Lift

The Edelbrock E-Street Pre-Assembled LS1 Cylinder Heads (MPN 7764) are designed for GM LS Cathedral Port engines, offering a performance upgrade or stock replacement. These heads come pre-assembled with dual valve springs rated for up to .660" lift, chromemoly steel retainers, heavy-duty stainless steel valves, and high-quality valve seals. They feature premium manganese bronze valve guides and are machined to precise tolerances to ensure secure valve seating and increased cylinder pressures. Edelbrock's patented Clean Cast Technology™ enhances internal surface finish for improved air and coolant flow, resulting in more power and better cooling. A unique dual spark plug pocket design allows compatibility with both factory-style tapered seat and gasketed seat spark plugs for broad tunability. These cylinder heads are engineered, manufactured, and tested in the USA to Edelbrock's high standards for performance and quality.