Manley Manley Valve - Exhaust, Valve-SBC S/D 1.500 11567-8
Specifications:
| Description_LAB | Severe Dty SBC Ex. Vlv Kit - 1.500 in. Head Dia.,4.911 in. O/A ,.3415 in. Stem |
| Description_DES | Manley Valve - Exhaust, Valve-SBC S/D 1.500 |
| Description_EXT | Manley Valve - Exhaust, Valve-SBC S/D 1.500 |
| Description_MKT | 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. |
| Description_FAB | Proven fatigue strength for extreme performance |
| Description_FAB | Chrome stems and hard tips enhance durability |
| Description_FAB | Exotic alloys for superior tensile strength, reliability, and longevity |
| Description_FAB | Swirl polishing and machined faces improved airflow/optimized efficiency |
| Description_TLE | Manley Severe Duty? Series Chevrolet Small Block Exhaust Valve Kit - 1.500 in. Head Dia., 4.911 in. O/A , 0.3415 in. Stem |
| Description_DEF | Engine Exhaust Valve |
| Description_SHO | Valve - Exhaust |
| Description_INV | Valve-SBC S/D 1.500 |
| Description_ASC | Manley Valve - Exhaust, Valve-SBC S/D 1.500. |
| Valve Head Diameter | 1.500 |
| Stem Diameter | 0.3415 |
| Valve Stem Diameter | 0.3415 |
| O/A Length | 4.911 |
| Valve Length | 4.911 |
| Valve Tip Length | 0.250 |
| Tip Length | 0.250 |
| Margin Width | 0.060 |
| Seat Width | 0.100 |
| Top of Head | 7 Degree Dish |
| Valve Head Shape | 7 Degree Dish |
| Underhead Angle | 10.00 |
| Underhead Radius | 3/8 |
| Valve Series | Severe Duty? Series |
| Valve Material | Stainless Steel |
| Valve Type | Exhaust |
| Product Type | Engine Exhaust Valve Kit |
| Valve Quantity | 8 |
| Engine Valve Quantity | 8 |
| Industry | Automotive |
| Out of Stock Message | Call for Availability |
| Title | Manley Valve - Exhaust, Valve-SBC S/D 1.500 |
| Prop 65 Yes/No | Yes |
| Prop 65 (C, R or CR) | CR |
| Prop 65 - Short Label | Prop 65 Warning Label.JPG |
| Engine Type | ICE |
| Make | Chevrolet |
| Engine | Small Block |
| Product Market | Domestic |
| Head Diameter | 1.500 |