Anyone use or know anything about Racing Head Service heads??
03-01-2013, 03:38 PM
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Anyone use or know anything about Racing Head Service heads?? I am in the market for some new heads and found these for sale but guy wants $915 each. Anyone ever used these before or have experience with them as that's like AFR/Trickflow territory.
GM LS Based 4.8L, 5.3L, 5.7L, 6.0L CNC-Ported Cathedral Port Head
RHS® Pro Action™ Cathedral Port Aluminum Cylinder Heads for LS Applications are engineered with highly efficient combustion chambers that increase power and torque by improving airflow and flame propagation (the spreading of flames in a combustible environment) while multi-angle intake and radiused exhaust seats even further improve airflow. Their durable 355T6 aerospace-grade aluminum alloy construction is lightweight and increases cylinder head life and strength while high capacity water jackets generate greater thermal conductivity for cooler, more efficient engine operation.
This affordable LS1-style head saves you the time and expense of having your heads CNC or hand-ported and combines a race-proven design with Clean Cast Technology™ to create "as cast" ports that flow like they've already been ported. Stock 15° valve angles and centers, drilled and tapped accessory holes, and stock port locations make these heads compatible with stock applications. However, added material at the top of each head allows for upgraded valve train
components, perfect for race applications.
Features & Benefits:
•CNC-Ported runners optimise volume, atomization, and velocity
•Clean Cast Technology™ creates as cast ports that flow as well as ported heads
•Affordable bolt-on LS performance upgrade ready for use right out of the box in mild street to all-out race applications
•Combustion chamber designs improve airflow and flame propagation to increase power & torque
•355T6 aluminum alloy is lightweight and increases life and strength
•High capacity water jackets generate greater thermal conductivity for cooler, more effective operation
Includes:
•COMP Cams® 26925-16 dual springs (up to .660" lift)
•COMP Cams® 1717-16 tool steel retainers
•250cc intake runners and 68cc combustion chambers
Engine Family: GM LS
Cylinder Head Series: Pro Action™
Cylinder Head Style: LS Cathedral Port
Configuration: Assembled
Material: Aluminum
Intake Runner: 250cc
Chamber: 68cc
Spark Plugs: Angle
Lifter Type/Valve Train: No
Max Lift: .660"
Intake Valve: 2.100"
Exhaust Valve Part Number: 1.600"
GM LS Based 4.8L, 5.3L, 5.7L, 6.0L CNC-Ported Cathedral Port Head
RHS® Pro Action™ Cathedral Port Aluminum Cylinder Heads for LS Applications are engineered with highly efficient combustion chambers that increase power and torque by improving airflow and flame propagation (the spreading of flames in a combustible environment) while multi-angle intake and radiused exhaust seats even further improve airflow. Their durable 355T6 aerospace-grade aluminum alloy construction is lightweight and increases cylinder head life and strength while high capacity water jackets generate greater thermal conductivity for cooler, more efficient engine operation.
This affordable LS1-style head saves you the time and expense of having your heads CNC or hand-ported and combines a race-proven design with Clean Cast Technology™ to create "as cast" ports that flow like they've already been ported. Stock 15° valve angles and centers, drilled and tapped accessory holes, and stock port locations make these heads compatible with stock applications. However, added material at the top of each head allows for upgraded valve train
components, perfect for race applications.
Features & Benefits:
•CNC-Ported runners optimise volume, atomization, and velocity
•Clean Cast Technology™ creates as cast ports that flow as well as ported heads
•Affordable bolt-on LS performance upgrade ready for use right out of the box in mild street to all-out race applications
•Combustion chamber designs improve airflow and flame propagation to increase power & torque
•355T6 aluminum alloy is lightweight and increases life and strength
•High capacity water jackets generate greater thermal conductivity for cooler, more effective operation
Includes:
•COMP Cams® 26925-16 dual springs (up to .660" lift)
•COMP Cams® 1717-16 tool steel retainers
•250cc intake runners and 68cc combustion chambers
Engine Family: GM LS
Cylinder Head Series: Pro Action™
Cylinder Head Style: LS Cathedral Port
Configuration: Assembled
Material: Aluminum
Intake Runner: 250cc
Chamber: 68cc
Spark Plugs: Angle
Lifter Type/Valve Train: No
Max Lift: .660"
Intake Valve: 2.100"
Exhaust Valve Part Number: 1.600"
