Designed specifically for B & RB series Big-Block Chrysler engines, the Performer RPM 230 cc Cylinder Heads are engineered to deliver the next level of power and performance. These premium cylinder heads feature high-quality components and precision machining to meet the demands of serious street and strip enthusiasts. Manufactured in Edelbrock’s ISO-certified facility in San Jacinto, California, each cylinder head is machined to exacting tolerances for exceptional quality and consistency. With larger 230 cc ports than comparable RPM heads and 73 cc fully CNC combustion chambers, this new design is ideal for high-performance applications that require increased airflow and power, while still maintaining compatibility with off-the-shelf components. These heads are intended for B and RB series Big-Block Chrysler engines not required to meet emission standards. Each Performer RPM 230 cc cylinder head comes fully assembled with premium valvetrain components, including stainless steel one-piece swirl-polished intake and exhaust valves with undercut stems for improved flow, manganese bronze valve guides, ductile iron valve seats, 2-ring positive oil control seals, hardened steel valve spring locators, and Edelbrock Sure-Seat valve springs, retainers, and keepers. Edelbrock’s patented Clean-Cast Technology further enhances performance by eliminating internal casting flaws and creating a smoother surface finish, which improves airflow and coolant circulation. The result is increased power and better cooling right out of the box, making these heads an excellent performance value for any Big-Block Chrysler build. For application-specific use, Part 60025 is designed for Hydraulic Roller applications, while Part 60029 is ideal for Hydraulic Flat Tappet setups.
Edelbrock’s Performer RPM 230 cc Cylinder Heads for B & RB Big Block Chryslers deliver premium performance with CNC 73 cc chambers, larger ports, and precision machining for maximum airflow, power, and compatibility with stock components.
Edelbrock Big Block Chrysler Performer RPM 230 CC Hydraulic Flat Tappet Camshaft
CNC combustion chambers for cylinder-to-cylinder consistency and performance
Performer RPM Chrysler Big-Block 230cc for Hydraulic Flat Tappet Camshaft
Large 230cc Intake ports for maximum flow from an "as-cast" port
Assembled with spring set for Hydraulic Flat Tappet Camshafts
PERF RPM, CHRYSLER BIG BLOCK, CNC CHAMBER, HYD FLAT TAPPET
Valve Spring Diameter (at base of spring) 1.550”
Valve Spring Closes Load 150 lbs at 1.870”
Valve Spring Open Load 367 lbs at 1.270”
Exhaust Valve Seat Material Ductile Iron
Intake Valve Seat Material Ductile Irion
Solid Spring Height (Coil Bind) 1.150”
Exhaust Valve Material Stainless Steel
Valve Spring Installed Height 1.870”
Intake Valve Material Stainless Steel
Valvetrain Configuration Stock Style
Valve Spring Retainer Material Steel
Max. Recommended Valve Lift .650”
Exhaust Valve Diameter 1.810”
Intake Valve Diameter 2.190”
Material 356-T6 Heat-Treated Al
Exhaust Valve Angle 15 degrees
Combustion Chamber Volume 75cc
Exhaust Guide Material Bronze
Intake Valve Angle 15 degrees
Intake Guide Material Bronze
Cylinder Head Style Complete
Exhaust Port Location Stock
CNC Combustion Chamber Yes
Intake Port Location Stock
Intake Runner Volume 230cc
Exhaust Runner Volume 75cc
Deck Thickness .75”
CNC Exhaust Runner No
CNC Intake Runner No
Part Number(s) 60025
VALVETRAIN 60025
Engine Cylinder Head
Finish Natural
EXHAUST 60025
INTAKE 60025
Cyl. Head
