GM Performance Cylinder Head, Rectangle Port, Aluminum, Assembled, 118cc Chamber, 315cc Intake Runner, Chevy, Big Block, Each (PART #GMP-12363400)

SPECIFICATIONS

Brand GM Performance
Manufacturer's Part Number 12363400
Part Type Cylinder Heads
Combustion Chamber Volume (cc) 118
Intake Runner Volume (cc) 315cc
Cylinder Head Style Assembled
Cylinder Head Material Cast aluminum
Intake Port Shape Rectangular
Intake Valve Diameter (in.) 2.250 in.
CNC-Machined Combustion Chamber No
CNC-Machined Intake Runner No
CNC-Machined Exhaust Runner No
Combustion Chamber Style Semi-open
Intake Port Location Standard
Exhaust Port Shape D-port
Exhaust Port Location Standard
Intake Valves Included Yes
Exhaust Valves Included Yes
Exhaust Valve Diameter (in.) 1.880 in.
Valve Springs Included Yes
Maximum Valve Lift (in.) 0.680 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 Umbrella
Rocker Arm Studs Included Yes
Rocker Arm Nut Thread Size 7/16 in.-20
Rocker Arms Included No
Rocker Arm Nuts Included No
Guideplates Included Yes
Guideplate Pushrod Size 3/8 in.
Accessory Bolt Holes Drilled Yes
Valve Guides Included Yes
Valve Guide Material Bronze
Valve Seats Machined No
Valve Seat Material Steel
Cylinder Head Color Natural
Steam Holes Drilled No
Oiling Style Through pushrod
Machined for O-Ring No
Heat Crossover No
Remanufactured No
Quantity Sold individually.