Brodix BB-2Xtra Aluminum Chev BB Head
The BB-2 Xtra head has a 340 cc intake port and flows over 375 cfm with only the bowls blended and the intake ports matched to the gaskets. the 365cc intake port has been contoured and matched for use in today's 540 cu. in. or larger bracket racing engines. Accepts all standard pistons, intake manifolds, and rocker arms. The exhaust ports are raised .600" higher than stock. Valve cover rails are raised to assure no oil leakage.
Assemblies include 2.300"/1.880" stainless steel valves, mechanical roller springs, 10 degree retainers and locks, rocker studs and guide plates.
*Features titanium retainers
Part Type: Cylinder Head
Application: Chevrolet Big Block
Cylinder Head Material: Aluminum
Bare or Assembled: Assembled
Combustion Chamber Size: 115cc
CNC Machined Combustion Chambers: No
Intake Valve Angle: 26
Exhaust Valve Angle: 26
Intake Port Volume: 365cc
CNC Machined Intake Port: No
Intake Port Flow: 379 cfm @ .700" Lift/ 28"
Intake Port Location: Standard
Intake Port Shape: Rectangular
Suggested Intake Gaskets: Fel-Pro 1252-3 or Equivalent
CNC Machined Exhaust Port: No
Exhaust Port Flow: 236 cfm @ .700" Lift/ 28"
Exhaust Port Location: Raised .600"
Exhaust Port Shape: D-Shaped
Suggested Exhaust Gaskets: Fel-Pro 1411 or Equivalent
Suggested Spark Plug: 14mm, .750 reach
Valve Guides: Yes
Valve Stem Diameter: 11/32" (.3415")
Valve Seats: Yes
Valve Job: 3-Angle
Intake Valve Diameter: 2.300"
Intake Valve Included: Yes
Exhaust Valve Diameter: 1.880"
Exhaust Valve Included: Yes
Valve Spring Pockets: May be cut up to 1.625" MAX.
Valve Springs Included: Yes, 1.625" Dual
Valve Spring Application: Mechanical Roller, 250lbs. Seat, 745lbs. Open, .800" Max Lift
Valve Springs Retainers Included: Yes (Titanium)
Valve Locks Included: Yes (10 Degree)
Valve Seals Included: Yes
Rocker Studs Included: Yes (7/16")
Guide Plates Included: Yes
Valve Cover Mounting Style: Perimeter Bolt
Steam Holes Drilled: No
Heat Crossover: No
Suggested Head Bolts: ARP 135-3606
Suggested Head Studs: ARP 235-4502
Head Bolt Torque with Oil: 70 ft./lbs.
Rocker Stud Torque with Oil: 45 ft./lbs.
Manufacturer: Brodix Cylinder Heads
Manufacturer's Part Number: BB-2Xtra
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Each |