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Brodix Dragon Slayer Series Small Block Chevy Aluminum Cylinder Heads 1321000 BRO-1321000 158-1321000

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Cylinder Head, Dragon Slayer, Aluminum, Assembled, 68cc Chamber, 225cc Intake Runner, Chevy, Small Block, SOLD AS A PAIR

Brodix Dragon Slayer Series Small Block Chevy Aluminum Cylinder Heads 1321000 BRO-1321000 158-1321000 Cylinder Head Style:Assembled Cylinder Head Material:Aluminum Cylinder Head Finish:Natural Combustion Chamber Volume (cc):68 CNC-Machined Combustion Chamber:Yes Intake Runner Volume (cc):225cc CNC-Machined Intake Runner:No CNC-Machined Exhaust Runner:No Intake Port Shape:Rectangular Intake Port Location:Standard Exhaust Port Shape:D-port Exhaust Port Location:Standard Spark Plug Style:Angle Intake Valves Included:Yes Intake Valve Diameter (in):2.080 in. Exhaust Valves Included:Yes Exhaust Valve Diameter (in):1.600 in. Valve Springs Included:Yes Maximum Valve Lift (in):0.600 in. Outside Diameter of Outer Spring (in):1.550 in. Damper Spring Included:No Number of Springs Per Valve:Dual Retainers Included:Yes Retainer Material:Steel Locks Included:Yes Lock Style:10 degree Valve Stem Seals Included:Yes Valve Stem Seal Style:Positive stop 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:5/16 in. Valve Cover Mounting Style:Perimeter bolt Accessory Bolt Holes Drilled:Yes Intake Valve Angle:23 Exhaust Valve Angle:23 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 a pair
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