Brodix Cylinder Heads BB-2X Cylinder Heads for Big Block Chevy 2021036

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These BB-2X cylinder heads from Brodix Cylinder Heads are designed to give your big block Chevy race engine that winning edge. They work well with light cars or large engines (509-555 cu. in.). Their intake ports flow over 360 cfm with only the bowls blended and the intake ports matched to the gaskets. These heads are compatible with all standard rocker arms, pistons, intake manifolds, valve covers, and stud girdles.

Cylinder Head Style:Assembled

Cylinder Head Material:Aluminum

Cylinder Head Finish:Natural

Combustion Chamber Volume (cc):119

CNC-Machined Combustion Chamber:No

Intake Runner Volume (cc):340cc

CNC-Machined Intake Runner:No

CNC-Machined Exhaust Runner:No

Intake Port Shape:Rectangular

Intake Port Location:Standard

Exhaust Port Shape:Round

Exhaust Port Location:Raised

Intake Valves Included:Yes

Intake Valve Diameter (in):2.300 in.

Exhaust Valves Included:Yes

Exhaust Valve Diameter (in):1.880 in.

Valve Springs Included:Yes

Maximum Valve Lift (in):0.700 in.

Outside Diameter of Outer Spring (in):1.550 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

Guideplates Included:Yes

Guideplate 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:5-angle

Valve Seat Material:Ductile iron

Steam Holes Drilled:No

Oiling Style:Through pushrod

Machined for O-Ring:No

Heat Crossover:No

Notes:Valve cover rails are raised for better sealing.

Sold as a pair


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