Q14003 Cylinder Heads
Big Block Chevy
Cylinder Head Material Aluminum
Cylinder Head Finish Natural
Combustion Chamber Volume (cc) 121
Cylinder Head Finish Natural
CNC-Machined Combustion Chamber NO
Intake Runner Volume 315cc
Exhaust Runner Volume 124cc
CNC-Machined Intake Runner NO
CNC-Machined Exhaust Runner NO
Combustion Chamber Style Heart
Intake Port Shape Rectangular
Intake Port Location Standard
Exhaust Port Shape Round
Exhaust Port Location Standard
Intake Valves Included Yes
Intake Valve Diameter 2.250″
Exhaust Valves Included Yes
Exhaust Valve Diameter 1.880
Valve Springs Included No
Maximum Valve Lift 0.750
Outside Diameter of Outer Spring 1.625″
Damper Spring Included Yes
Number of Springs Per Valve Dual
Retainers Included No
Retainer Material Chromoly steel
Locks Included No
Lock Style 10 degree
Rocker Arm Nut Thread Size 7/16-20″
Rocker Arms Included No
Rocker Arm Nuts Included No
Valve Cover Mounting Style Perimeter bolt
Accessory Bolt Holes Drilled Yes
Intake Valve Angle 24/4
Exhaust Valve Angle 15/4
Valve Guides Included Yes
Valve Guide Material Bronze
Valve Seats Machined Yes
Valve Seat Machine Style 3-angle
Valve Seat Material Mental powder
Steam Holes Drilled No
Oiling Style Through pushrod
Machined for O-Ring No
Heat Crossover No
Quantity Sold as a pair
         Notes: 1″ longer head bolts required on the four bottom exhaust bolt holes.
                        These cylinder heads are competition ported