High-performance aluminum cylinder head provides out-of-the-box, bolt-on horsepower for 1967-91 AMC 343-401 V8?s. Head includes CNC-profiled intake and exhaust ports, dual quench 54cc combustion chambers and an improved 45ø intake valve seat angle. Offered with or without an exhaust crossover passage. Sold individu-ally, bare or completely assembled.
- Cylinder Head Style:
- Assembled
- Cylinder Head Material:
- Cast aluminum
- Cylinder Head Finish:
- Natural
- CNC-Machined Combustion Chamber:
- No
- Combustion Chamber Volume (cc):
- 54cc
- Combustion Chamber Style:
- Heart
- CNC-Machined Intake Runner:
- No
- Intake Runner Volume (cc):
- 185cc
- Intake Port Shape:
- Rectangular
- Intake Port Location:
- Standard
- Intake Valve Angle:
- 18 degree
- CNC-Machined Exhaust Runner:
- No
- Exhaust Runner Volume (cc):
- 70cc
- Exhaust Port Shape:
- N/A
- Exhaust Port Location:
- Standard
- Exhaust Valve Angle:
- 18 degree
- Intake Valves Included:
- Yes
- Intake Valve Diameter (in.):
- 2.020 in.
- Exhaust Valves Included:
- Yes
- Exhaust Valve Diameter (in.):
- 1.600 in.
- Valve Type:
- Stainless
- Maximum Valve Lift (in.):
- 0.580 in.
- Valve Springs Included:
- Yes
- Valve Spring Type:
- Single w/Damper
- Outside Diameter of Outer Spring (in.):
- 1.550 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:
- PTFE Positive stop
- Locks Included:
- Yes
- Lock Style:
- 7 degree
- Camshaft Style:
- Hydraulic flat tappet
- Spark Plug Style:
- Angled
- Guideplates Included:
- Yes
- Guideplate Pushrod Size:
- 5/16 in.
- Rocker Arm Studs Included:
- Yes
- Rocker Arm Nut Thread Size:
- 3/8-24 in.
- 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:
- American Motors
- Engine Family:
- AMC V8
- Engine Sizes:
- 5.6L/343-6.6L/401
- Years:
- 1967-1978
