Manley Valve - Exhaust, Valve-330-455 1.710
Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.
  • Proven fatigue strength for extreme performance
  • Chrome stems and hard tips enhance durability
  • Exotic alloys for superior tensile strength, reliability, and longevity
  • Swirl polishing and machined faces improved airflow/optimized efficiency

Information:

Manley Valve - Exhaust, Valve-330-455 1.710.
Attributes
California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy Valves>Severe Duty, Valves>Stainless Steel>Severe Duty
Country of Origin (Primary) CN
EBAY Category ID 33621
Emission Code Off Road
Engine 330, 455, 330, 455
Engine - Web 330, 455, 455, 330
Engine Detail - Web 330, 455, 330, 455
Engine Family 455, 330, 455, 330
Engine Type ICE, ICE
Engine Valve Quantity 8, 8
Hazardous Material Code N
Head Diameter 1.710, 1.710
Industry Automotive, Automotive
Life Cycle Status Code Available to Order
Make Oldsmobile, Oldsmobile
Make - Web Oldsmobile, Oldsmobile
Margin Width 0.060, 0.060
O/A Length 4.668, 4.668
Out of Stock Message Call for Availability, Call for Availability
Product Market Domestic, Domestic
Product Type Engine Exhaust Valve Kit, Engine Exhaust Valve Kit
SDR Required Flag N
Seat Width 0.100, 0.100
Stem Diameter 0.3415, 0.3415
Tip Length 0.260, 0.260
Title - Web Manley Severe Duty? Series Oldsmobile 330 Exhaust Valve Kit - 1.710 in. Head Dia., 4.668 in. O/A Length, 0.3415 in. Stem, Manley Severe Duty? Series Oldsmobile 330 Exhaust Valve Kit - 1.710 in. Head Dia., 4.668 in. O/A Length, 0.3415 in. Stem
Top of Head 5 Degree Dish, 5 Degree Dish
Type Exhaust
Underhead Angle 10.00, 10.00
Underhead Radius 3/8, 3/8
Valve Head Diameter 1.710, 1.710
Valve Head Shape 5 Degree Dish, 5 Degree Dish
Valve Length 4.668, 4.668
Valve Material Stainless Steel, Stainless Steel
Valve Quantity 8, 8
Valve Series Severe Duty? Series, Severe Duty? Series
Valve Stem Diameter 0.3415, 0.3415
Valve Tip Length 0.260, 0.260
Valve Type Exhaust, Exhaust
Warranty Time 30
GTIN 00807298050027