Aluminum cylinder heads for big block Chrysler include many improvements over OEM cast iron heads. Heads include an optimized runner design with CNC-porting for dramatically improved flow. Compatible with OEM-style pistons, roller rocker arms, intake manifolds, and headers, fully assembled heads include stainless 11/32" valves, dual valve springs, and choice of steel or titanium retainers. Sold per pair.
- Cylinder Head Style:
- Assembled
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- Yes
- Combustion Chamber Volume (cc):
- 78cc
- Combustion Chamber Style:
- Heart
- CNC-Machined Intake Runner:
- Yes
- Intake Runner Volume (cc):
- 240cc
- Intake Port Shape:
- Rectangular
- Intake Port Location:
- Standard
- Intake Valve Angle:
- 15 degree
- CNC-Machined Exhaust Runner:
- Yes
- Exhaust Runner Volume (cc):
- 74cc
- Exhaust Port Shape:
- Oval
- Exhaust Port Location:
- Standard
- Exhaust Valve Angle:
- 15 degree
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.190 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.760 in.
- Valve Type:
- Stainless
- Maximum Valve Lift (in.):
- 0.650 in.
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Dual W/Damper
- Outside Diameter of Outer Spring (in.):
- 1.460 in.
- Valve Guides Included:
- Yes
- Valve Guide Material:
- 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 steel
- Camshaft Style:
- Hydraulic roller
- Spark Plug Style:
- Angled
- 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:
- Longer than stock pushrods may be required. Minimum bore size is 4.320 in.
- 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
