BB-3 XTRA 345 Series Cylinder Heads
Cylinder Head Specifications:
- Intake Port Volume: 345cc - Rectangle Port
- Combustion Chamber Volume: 119cc
- Valves: 2.300 in. dia. x 5.568 in. o.a.l. Intake / 1.880 in. dia. x 5.494 in. o.a.l. Exhaust ( 11/32 in. Stem Diameter)
- Valve Springs: 1.645 in. Diameter - Open Pressure: 745 lbs.; Closed Pressure: 255 lbs.
- Installed Height: 2.050 in.; Max Lift: .800 in.
- Spring Retainers: 1.625 in. 10-degree Titanium
- Rocker Studs: 7/16 in.
- Guide Plates: 3/8 in.
- Valve Seals: 11/32 in.
Facts and Related Components:
- Torque Heads: 70 ft-lbs.
- Torque Rocker Studs: 40-45 ft-lbs.
- Valve Angle: 24-degree and 4-degree Intake, 15-degree and 4-degree exhaust
- Angle Milling: .0066 in PER cc
- Flat Milling: .0050 in PER cc
- Pistons: 2-degree valve rolled piston
Specifications:
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.