Gasoline V8
ATK Core Return Process
JEGS and ATK appreciate your business and want to ensure that your core return is as smooth as possible.
Please CLICK HERE for ATK Core Return Process
Notes:
- VIN H, M
- Head Cast #: D0OE-C/G
- Complete with valves and springs
- 8 intake bolts per head
Specifications:
What is the Valspring pressure weight opening closed
Did the exhaust seats get drilled out and replaced with hardened seats? I see this as a must, because of the modern unleaded gasoline. I dont plan on buying lead additive to every fuel tank and want to make sure these are "unleaded proof"
Are these heads compatible with 289 engines? Are they compatible with roller cam retrofit lifters? What is the maximum lift?
Hi, What is the size of the mounting bolt 1/2 or 7/16?
What are the size of the valves? Any issue using roller rockers?
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.