Race-Rite RR BB-O Series Cylinder Heads
270cc Oval Intake Ports BUY now for $1200.00 each includes shipping. BUY NOW with Covid, it has caused manufacturing delays.
110cc Combustion Chambers
2.250” Intake / 1.880” Exhaust Valves
1.550” Dia. Springs – 140# Seat Pressure
Assembled, 2/pkgs. These heads are assembled at Brodix Inc., allow 15 working days for delivery.
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 110
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 270cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Intake Port Shape: Oval
Intake Port Location: Standard
Exhaust Port Shape: Round
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.250 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.880 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.600 in.
Outside Diameter of Outer Spring (in): 1.470 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 10 degree
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 7/16-20 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guide plates Included: Yes
Guide plate Pushrod Size: 3/8 in.
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 26
Exhaust Valve Angle: 26
Valve Guides Included: Yes
Valve Guide Material: Phosphorous bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Ductile iron
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold as 1 Each.
Notes: Race-Rite cylinder heads include intake valve stem seals only.
** Please allow 60 working days for shipment from Brodix Inc. Mena AR