Brodix BP BR 7 BS 300 Series Cylinder Heads 300 cc Intake Ports
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BP BR 7 BS 300 Series Cylinder Heads
This BR 7 Cylinder Head is sold as an unassembled bare casting. LS7 300cc cylinder head is finished machined and includes valve guides and valve seats installed. Bare BR 7 Cylinder Heads do NOT include studs, valves, springs retainers or locks.
Cylinder Head Specifications
- Intake Port Volume: 300cc
- Combustion Chamber Volume: 72cc
- Valves: 2.250 in. dia. x 5.450 in. o.a.l. Intake / 1.580 in. dia. x 5.450 in. o.a.l. Exhaust (8 mm Stem Diameter)
Facts and Related Components
- Torque Heads: 11 mm STUDS - 85 ft.-lbs. WITH OIL / 8 mm STUDS - 26 ft.-lbs. WITH OIL
- Torque Rocker Studs: 22 ft.-lbs.
- Intake Gasket: Fel-Pro p/n 375-1208-3 (.060), GM p/n 809-19172113
- Head Gasket: Fel-Pro p/n 375-1185-041 (4.175 bore) or GM p/n 809-12582179
- Exhaust Gasket: Fel-Pro p/n 375-1440
- Head Studs: ARP p/n 070-234-4319 (undercut studs)
- Spark Plug Specs: 14 mm Thread, .750 in. (3/4 in.) Reach, Gasket Seat (NGK R5671A)
- Valve Angle: 10 degree
- Flat Milling: .0060 in. per cc
- Dowell Shift: Standard
- Pushrod Slots: Standard
- Rocker Arms: LS7 style
- Lifters: Standard
- Intake Manifold: LS7 or Equivalent
- Valve Centerline: Standard
- Spring Pockets: 1.550 in. out of the box, May not be cut any larger or deeper
- Accessory Bolt Holes are Drilled
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.