Manley 12815-1 Manley Valve - Exhaust, Valve-S/D 1.880,+.100.

Discover the pinnacle of performance and racing excellence with Manley's Severe Duty? Valves. Exhaust valves crafted from XH-428 material and Intake valves from NK-844 material, these valves stand as a testament to our unwavering commitment to superiority in the industry. Severe Duty? Valves outshine the competition in every aspect.

Description_DEF	Engine Exhaust Valve
Description_DES	Manley Valve - Exhaust, Valve-S/D 1.880,+.100
Description_EXT	Manley Valve - Exhaust, Valve-S/D 1.880,+.100.
Description_FAB	Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400?F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a staggering 1000 times better fatigue life. Designed for High Temperature Gasoline Engines: Engineered for superior performance in high-temperature gasoline engines. Chrome Stems and Hard Tips: Incorporating chrome stems and hard tips for enhanced durability and longevity. Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency. XH-428 for Exhaust: No competitor worldwide offers the exceptional XH-428 as exhaust valve material. It boasts nearly double the ultimate tensile strength at 1500?F compared to the competition's EV-8. NK-844 for Intake: Our intake valve material, NK-844, is equally unmatched, displaying over four times the ultimate tensile strength of the competition's best intake valve material at 1000?F.
Description_INV	Valve-S/D 1.880,+.100
Description_MKT	Discover the pinnacle of performance and racing excellence with Manley's Severe Duty? Valves. Exhaust valves crafted from XH-428 material and Intake valves from NK-844 material, these valves stand as a testament to our unwavering commitment to superiority in the industry. Severe Duty? Valves outshine the competition in every aspect.
Description_SHO	Valve - Exhaust
Engine	Big Block
Engine Type	ICE
height	2.5
length	7.0
LTL	N
Make	Chevrolet
Product Type	Engine Exhaust Valve
Prop 65 (C, R or CR)	CR
Prop 65 - Short Label	Prop 65 Warning Label.JPG
Prop 65 Yes/No	Yes
Stem Diameter	0.311
Tip Length	0.250
Title	Manley Valve - Exhaust, Valve-S/D 1.880,+.100
weight	0.25
width	2.5