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Manley Engine Exhaust Valve - 12175B-8

Manley Valve - Exhaust, Valve-TI BBC SR20 - Dart 20 Deg - X20 1.850
Manufacturer: Manley
Manufacturer part number: 12175B-8
Old price: $1,435.62
$1,220.28
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Manley Titanium Valves are expertly designed to reduce valvetrain weight, improve efficiency, and excel in high-RPM applications. Lightweight yet incredibly strong, they enhance throttle response, power, and durability, making them the choice of performance enthusiasts and professional engine builders. Each valve features a one-piece forged titanium construction with superior grain flow to eliminate weak points and ensure long-term strength. State-of-the-art CNC machining and precision grinding deliver tight tolerances and consistent sealing for optimal engine performance. Crafted from premium titanium alloys, Manley valves achieve the perfect balance of hardness, ductility, and fatigue resistance under extreme temperatures. Every valve undergoes rigorous quality control and final inspection, guaranteeing unmatched reliability, precision, and consistency in the most demanding racing conditions. When performance matters, Manley Titanium Valves power the winners.

Note: Manley Valve - Exhaust, Valve-TI BBC SR20 - Dart 20 Deg - X20 1.850

Products specifications

Attribute name Attribute value
Seat Width .070
Margin Width .075
Tip Length 0.250
Valve Tip Length 0.250
Stem Diameter 0.3110
Valve Stem Diameter 0.3110
Head Diameter 1.850
Valve Head Diameter 1.850
Underhead Radius 3/8
Underhead Angle 30.00
O/A Length 5.975
Valve Length 5.975
Seat Angle 55.00
Engine Valve Quantity 8
Valve Quantity 8
Weight 90
Valve Groove Type Bead Loc?
Prop 65 (C, R or CR) CR
Product Type Engine Exhaust Valve
Valve Type Exhaust
Cylinder Head M&M X20
Seat Coating None
Installed Height Stock
Valve Material Titanium
Valve Series Titanium Series
Prop 65 Yes/No Yes
Country of Origin US
Condition New
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