E-CNC Small-Block Ford Cylinder Head Hydraulic Roller Springs

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The Edelbrock part # 79259 Small Block Ford E-CNC 185 cylinder head is the ultimate in performance. These cylinder heads are fully CNC ported for maximum horsepower and torque, making them ideal for high-performance street and light duty racing applications. They also feature high-quality lightweight valve springs and heavy duty hardware for maximum lift and maintain the stock exhaust port location. E-CNC 185 FORD FEATURES: - CNC ported to achieve optimal air-flow for maximum horsepower and torque in high performance street and light duty racing applications - The casting and port designs are all new and engineered for great performance - Fully CNC'd intake ports, combustion chambers and exhaust ports for improved air-flow - Heads feature 2.02" intake and 1.57" exhaust, 8mm stem valves and are equipped with conical valve springs and steel retainers for a lightweight and durable valve train combo - Aggressive 18° valve angle for maximum performance and accepts common intake manifolds such as Edelbrock Performer RPM and RPM II - Equipped with valve springs for use in hydraulic roller applications - Combustion chamber size of 59cc - Maximum lift: flat tappet; .600", roller lifter springs; .670"

Documents & Installation Notes


Availability Available
Application Application Specific
GTIN 00085347792597
Availability Note Available to Order
Warranty 12 Months
Emissions Code
Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • Match with Edelbrock head gasket sets.
CNC Ported Yes
Combustion Chamber Volume 59.0 cc
Deck Height 8.2 in
Deck Thickness 0.625 in
Exhaust Valve Diameter 1.570 in
Guide Plates Included Yes
Intake Runner Volume 185.0 cc
Intake Valve Diameter 2.020 in
Material Aluminum
Push Rod Diameter 0.312 in
Rocker Stud Diameter 0.437 in
Valve Angle 18 deg
Valve Spring Diameter 1.300 in
Valve Spring Maximum Lift 0.600 in
Valve Stem Diameter 0.341 in