• Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM 12347-8 Photo - Primary
  • Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM 12347-8 User 1
  • Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM 12347-8 Photo - out of package
  • Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM 12347-8 User 1
  • Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM 12347-8 User 2
  • Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM 12347-8 User 3
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Manley

Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM

Manley Performance VALVE-S/D LT1 6.2L 1.590, .3136 STEM

sku: 11CQR | mpn: 12347-8
$360.90
$382.30 $360.90
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32 in stock

Emissions

This is not an emissions item.
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PRO FLO SEVERE DUTY VALVES / EXTREME DUTY VALVES 
Manley valves have set the standard for excellence in quality, material and design in the performance world for four decades. Manufactured from our proven Severe Duty and XtremeAlloy materials providing the ultimate in strength and durability. Manley valves feature chrome stems, hard tips, fully machined surfaces and swirl polished radii. The intakes utilize our Severe Duty material, the best available, and are the Pro Flo design for maximum air flow. The Extreme Duty exhausts are made from our top of the line XtremeAlloy exhaust material, the best in the market making it ideally suited for forced induction and nitrous applications.

Specification

  • Type : Exhaust
  • Head Diameter :1.590"
  • Stem Diameter : .3136"
  • Installed Height : Stock
  • O/A Length : 5.205"
  • Tip Length : .160"
  • Underhead Angle/Radius : 25° x 7/16"
  • Margin : .075"
  • Seat Width : .100"
  • Top Head : 18° Dish
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