RPM Gen V LT1 Chevy Cylinder Head Hydraulic Roller Springs

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The Edelbrock part # 77119 LT1 (Gen V) Performance RPM cylinder heads are ideal for street engines and are engineered to be a great high-performance upgrade for stock GM Gen V LT1 engines. It has been designed with a thicker deck and more material in the intake, exhaust and port walls for improved strength and durability. This cylinder head features CNC machined chambers as well as CNC blended valve seats, intake and exhaust ports for consistency. They have been designed with high flow intake, exhaust ports and back cut intake valves for improved air flow. The valve position has also been revised to accommodate interlocking valve seat rings and larger valves. The Performer RPM retains the stock rocker arm, intake/exhaust ports and spark plug location for use with factory components. Like all of our other cylinder heads, these have been designed, tested and cast from 356 aluminum and heat treated to T-6 specs in our facilities in Southern California to guarantee you get the best from a name you can trust. - Combustion chamber volume: 58cc - Intake runner volume: 305cc - Exhaust runner volume: 115cc - Intake valve diameter: 2.165" - Exhaust valve diameter: 1.600"

Documents & Installation Notes


Availability Available
Head Casting Number 7711F
Grade Type Performance
Application Application Specific
UPC 00085347771196
Availability Note Available to Order
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. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
CNC Ported No
Combustion Chamber Volume 60.0 cc
Deck Height 9.240 in
Deck Thickness 0.750 in
Exhaust Valve Diameter 1.600 in
Guide Plates Included No
Intake Runner Volume 305.0 cc
Intake Valve Diameter 2.165 in
Material Aluminum
Push Rod Diameter 0.375 in
Valve Spring Diameter 1.320 in
Valve Spring Maximum Lift 0.650 in
Valve Stem Diameter 0.313 in