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Manley Race Master Stainless Steel Exhaust Valves - 4.6L / 5.4L 2V PI - 37mm -Bead Loc® Groove

Pricing: $199.99



  • +1mm Stainless Steel Race Master Exhaust Valves 
  • XH-426 Stainless Steel Alloy Material 
  • Fits 4.6L / 5.4L 2V PI Cylinder Heads 
  • Machined for Manley Bead Loc® Single Groove Valve Locks
  • Much stronger than standard Triple Groove Valve Locks 
  • Sold as a set of 8 

Valve Specifications

Part Number  11639B-8 
Type  Exhaust 
Head Diameter  37.00mm
Stem Diameter  .2740" 
Installed Height  Stock 
Overall Length  4.650" 
Tip Length  .485" 
Underhead Angle / Radius  15° x 1/2" 
Margin Thickness   .060" 
Seat Width   .080" 
Top of Head   9° Dish 
Weight   68 Grams 



  • MAN-11639B-8
  • MAN-11639B-8
  • Manley
  • New


Shipping Information

  • Item Requires Shipping
  • 3.0 lbs.
  • W8.0000” x H3.0000” x L12.0000”

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