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Starting at $565.76

Dart SHP Special High Performance Small Block Chevy Cylinder Heads 127221 DRT-127221 301-127221

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Cylinder Head, SHP, Aluminum, Assembled, 72cc Chamber, 180cc Intake Runner, Chevy, 327, 350, 400, Sold As Each

Dart SHP Special High Performance Small Block Chevy Cylinder Heads 127221 DRT-127221 301-127221 Cylinder Head Style:Assembled Cylinder Head Material:Aluminum Cylinder Head Finish:Natural Combustion Chamber Volume (cc):72 CNC-Machined Combustion Chamber:No Intake Runner Volume (cc):180cc Exhaust Runner Volume (cc):75cc CNC-Machined Intake Runner:No CNC-Machined Exhaust Runner:No Combustion Chamber Style:Heart Intake Port Location:Standard Exhaust Port Shape:Square Exhaust Port Location:Standard Spark Plug Style:Straight Intake Valves Included:Yes Intake Valve Diameter (in):2.020 in. Exhaust Valves Included:Yes Exhaust Valve Diameter (in):1.600 in. Valve Springs Included:Yes Maximum Valve Lift (in):0.520 in. Outside Diameter of Outer Spring (in):1.250 in. Damper Spring Included:No Number of Springs Per Valve:Single Retainers Included:Yes Retainer Material:Steel Locks Included:Yes Lock Style:7 degree Valve Stem Seals Included:Yes Valve Stem Seal Style:Umbrella Rocker Arm Studs Included:Yes Rocker Arm Nut Thread Size:3/8-24 in. Rocker Arms Included:No Rocker Arm Nuts Included:No Guideplates Included:Yes Guideplate Pushrod Size:5/16 in. Valve Cover Mounting Style:Center and perimeter bolt Accessory Bolt Holes Drilled:Yes Intake Valve Angle:23 Exhaust Valve Angle:23 Valve Guides Included:Yes Valve Guide Material:Manganese bronze Valve Seats Machined:Yes Valve Seat Machine Style:5-angle intake/2-angle exhaust Valve Seat Material:Powdered metal Steam Holes Drilled:No Oiling Style:Through pushrod Machined for O-Ring:No Heat Crossover:No Quantity:Sold individually. Notes:Hydraulic flat tappet applications
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