Head Diameter: 1.850 in. - Stem Diameter: 0.3110 in. - O/A : 5.975 in. - Bead Loc? Groove - Set of 8
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.
  • Lightweight titanium reduces valvetrain mass and boosts efficiency
  • Built for extreme RPM and aggressive cams
  • One-piece forged for strength
  • CNC machined for precision
  • Premium alloys ensure durability
  • Rigorously inspected for reliability

Information:

Manley Valve - Exhaust, Valve-TI BBC SR20 - Dart 20 Deg - X20 1.850
Attributes
Average Gram Weight 90.00
Back Cut Angle 42.00
Back Cut Width .025
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy Valves>Titanium, Valves>Titanium
Country of Origin (Primary) US
Cylinder Head M&M X20, M&M X20
EBAY Category ID 33621
Emission Code Off Road
Engine Big Block, Big Block
Engine - Web Big Block, Big Block
Engine Detail - Web Big Block, Big Block
Engine Family Big Block, Big Block
Engine Type ICE, ICE
Engine Valve Quantity 8, 8
Hazardous Material Code N
Head Diameter 1.850, 1.850
Industry Automotive, Automotive
Installed Height Stock, Stock
Life Cycle Status Code Available to Order
Make Chevrolet, Chevrolet
Make - Web Chevrolet, Chevrolet
Margin Width .075, .075
O/A Length 5.975, 5.975
Out of Stock Message Call for Availability, Call for Availability
Product Market Domestic, Domestic
Product Type Engine Exhaust Valve Kit, Engine Exhaust Valve
SDR Required Flag N
Seat Angle 55.00, 55.00
Seat Coating None, None
Seat Width .070, .070
Stem Diameter 0.3110, 0.3110
Tip Length 0.250, 0.250
Title - Web Manley Titanium Series Chevy Big Block Exhaust Valve Kit, Manley Titanium Series Chevrolet Big Block Exhaust Valve Kit
Underhead Angle 30.00, 30.00
Underhead Radius 3/8, 3/8
Valve Groove Type Bead Loc?, Bead Loc?
Valve Head Diameter 1.850, 1.850
Valve Length 5.975, 5.975
Valve Material Titanium, Titanium
Valve Quantity 8, 8
Valve Series Titanium Series, Titanium Series
Valve Stem Diameter 0.3110, 0.3110
Valve Tip Length 0.250, 0.250
Valve Type Exhaust, Exhaust
Warranty Time 30
Weight 90, 90
GTIN 00807298112756