- Jegs
- Engines & Components
- Cylinder Heads
- Chevrolet Performance LS3 CNC-Ported Aluminum Cylinder Head
Chevrolet Performance LS-Series LS3 Aluminum Cylinder Head Kit CNC-Ported & Assembled
809-88958758K








LS3 Aluminum Cylinder Head
Specifications:
The Chevrolet Performance LS3 CNC-Ported Aluminum Cylinder Head design benefits from General Motors' extensive research and development program, ensuring maximum airflow without compromises. In fact, many professional builders use this head as straight bolt-ons, with no further machining. These assembled heads use premium machining and materials, including CNC finishing and porting, along with lightweight, hollow-stem intake valves and sodium-filled exhaust valves to provide your engine with the power increase you have been searching for! Features JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.
Valve Lift (Inches) Intake Flow (CFM) Exhaust Flow (CFM) .100 74 89 .200 178 137 .300 237 176 .400 302 228 .500 333 244 .550 348 249 .600 355 253 .700 363 258
Do you offer these heads with a stronger sprint to support lift over .550?
Are these heads good for a L92 with a LSA supercharger? or should i use the LS9 heads? thanks!
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.