Manley Performance

Manley Titanium Exhaust Valves AJPE 4/5 Hemi 2.000in Head 5.020in Length Set of 8

SKU: man11989-8 UPC: 807298059570
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$1,332.49

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This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

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Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

Manley Titanium Series exhaust valves for Alan Johnson Performance Engines AJPE 4/5 cylinder heads, used in Top Fuel, Top Fuel Funny Car and Nostalgia classes. They measure 2.000 in. across the head with a 5.020 in. overall length and a .3415 in. stem, and Manley lists them at 100 grams each.

Key Features

  • Titanium construction cuts valvetrain mass and helps the engine carry more RPM
  • Built .100 in. longer than standard installed height
  • Conventional square keeper groove
  • 45 degree seat angle with a 25 degree underhead angle

Fitment

  • Alan Johnson Performance Engines AJPE 4/5 cylinder head
  • Top Fuel, Top Fuel Funny Car and Nostalgia classes

Product Details

  • Position: Exhaust
  • Head Diameter: 2.000 in.
  • Overall Length: 5.020 in.
  • Stem Diameter: .3415 in.
  • Installed Height: .100 in. longer
  • Tip Length: .250 in.
  • Margin: .085 in.
  • Seat Width: .075 in.
  • Seat Angle: 45 degrees
  • Underhead Angle: 25 degrees
  • Groove Type: Conventional square
  • Material: Titanium
  • Series: Manley Titanium Series
  • Weight: 100 grams each
  • Quantity: Set of 8
  • Manufacturer Part Number: 11989-8

These are drag race valves for the AJPE 4/5 cylinder head, not a production Hemi part.

Shipping Height: 2.5

Shipping Length: 7.0

Shipping Width: 2.5

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