The Edelbrock 61099 Performer RPM cylinder head is a bolt-on performance upgrade for 2003-2008 Gen III HEMI Early 5.7L engines. It's designed to fit with the stock intake manifold, exhaust manifold, valve cover, rockers, spark plugs and accessories, as well as Hellcat components. this cylinder head have been machined to be used on either the driver or passenger side of the block. They are cast from A356 aluminum and heat treated to T6 specifications, machined and assembled at Edelbrock's facility in Torrance, California for guaranteed quality. The Edelbrock #61099 Performer RPM cylinder head features fully CNC machined combustion chambers along with CNC profiled bowls and port entries/exits for improved air flow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength. Extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock. Match with an Edelbrock Victor EFI #7179 intake manifold for the ultimate in Edelbrock Gen III HEMI performance.
- Cylinder Head Style:
- Assembled
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- Yes
- Combustion Chamber Volume (cc):
- 83cc
- Combustion Chamber Style:
- Hemi
- CNC-Machined Intake Runner:
- Yes
- Intake Runner Volume (cc):
- 202cc
- Intake Port Shape:
- Square
- Intake Port Location:
- Standard
- Intake Valve Angle:
- 18.8 degree
- CNC-Machined Exhaust Runner:
- No
- Exhaust Runner Volume (cc):
- 75cc
- Exhaust Port Shape:
- D-port
- Exhaust Port Location:
- Standard
- Exhaust Valve Angle:
- 16.8 degree
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.165 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.650 in.
- Valve Type:
- Stainless
- Maximum Valve Lift (in.):
- 0.680 in.
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Single
- Outside Diameter of Outer Spring (in.):
- 1.066 in./1.300 in.
- Valve Guides Included:
- Yes
- Valve Guide Material:
- Manganese bronze
- Valve Seats Machined:
- Yes
- Valve Seat Material:
- Ductile iron
- Valve Seat Machine Style:
- 3-angle
- Retainers Included:
- Yes
- Retainer Material:
- Steel
- Valve Stem Seals Included:
- Yes
- Valve Stem Seal Style:
- Positive stop
- Locks Included:
- Yes
- Lock Style:
- 7 degree
- Camshaft Style:
- Hydraulic roller
- Spark Plug Style:
- Hemi
- Guideplates Included:
- No
- Guideplate Pushrod Size:
- N/A
- Rocker Arm Studs Included:
- No
- Rocker Arm Nut Thread Size:
- N/A
- Accessory Bolt Holes Drilled:
- Yes
- Valve Cover Mounting Style:
- Perimeter bolt
- Heat Crossover:
- No
- Steam Holes Drilled:
- No
- Oiling Style:
- Through head
- Machined for O-Ring:
- No
- Quantity:
- Sold individually.
- Notes:
- Can be used on either driver side or passenger side of the block.
- Make:
- Mopar
- Engine Family:
- Mopar Hemi Gen III
- Engine Sizes:
- 5.7L/345
- Years:
- 2003-2008
