Features .650" raised intake ports and .250" raised exhaust ports for substantially improved performance over Performer RPM heads. Offered in standard or Max Wedge versions, head is ideal for use on large-displacement, high-compression drag race engines. Head is sold individually, bare with valves.
- Cylinder Head Style:
- Bare
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- No
- Combustion Chamber Volume (cc):
- 75cc
- Combustion Chamber Style:
- Heart
- CNC-Machined Intake Runner:
- No
- Intake Runner Volume (cc):
- 290cc
- Intake Port Shape:
- Rectangular
- Intake Port Location:
- Raised 0.650 in.
- Intake Valve Angle:
- 15 degree
- CNC-Machined Exhaust Runner:
- No
- Exhaust Runner Volume (cc):
- 100cc
- Exhaust Port Shape:
- Rectangular
- Exhaust Port Location:
- Raised 0.250 in.
- Exhaust Valve Angle:
- 15 degree
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.200 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.810 in.
- Valve Type:
- Stainless
- Maximum Valve Lift (in.):
- N/A
- Valve Springs Included:
- No
- Valve Spring Type:
- N/A
- Outside Diameter of Outer Spring (in.):
- N/A
- 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:
- No
- Retainer Material:
- N/A
- Valve Stem Seals Included:
- Yes
- Valve Stem Seal Style:
- Positive stop
- Locks Included:
- No
- Lock Style:
- N/A
- Camshaft Style:
- N/A
- Spark Plug Style:
- N/A
- 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.
- Make:
- Mopar
- Engine Family:
- Mopar big block B
- Engine Sizes:
- 6.3L/383-6.6L/400
- Years:
- 1959-1978
- Engine Family:
- Mopar big block RB
- Engine Sizes:
- 6.8L/413-7.2L/440
- Years:
- 1961-1979
