Sold Out Quick view Manley Performance Manley Ford 4.6L Modular V8 Exhaust Valve Kit - 38.50mm Head Dia. 4.585in O/A Length, 0.2345in Stem - 11633B-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Currently Out of stock. On order! Currently Out of stock. On order!
Quick view Manley Performance Manley Ford 4.6L 38.5mm Race Master & Extreme Duty Exhaust Valves *Set of 8* - 11633-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Cart Add to Cart
Quick view Manley Performance Manley Ford 4.6L/5.4L Small Block SOHC Extreme Duty Exhaust Valves (Set of 8) - 11631B-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Cart Add to Cart
Quick view Manley Performance Manley Ford 4.6L 37.5mm Diameter 117.35mm Length Race Master Exhaust Valves (Set of 8) - 11631-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Cart Add to Cart
Sold Out Quick view Manley Performance Manley Chevrolet L-99 intake Valve Kit - 2.165in Head Dia. 4.900in O/A Length, 0.3133in Stem - 11620H-8 Compare $716.57 $537.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Currently Out of stock. On order! Currently Out of stock. On order!
Sold Out Quick view Manley Performance Manley Ford 6.2L Raptor V8 intake Valve Kit - 54.50mm Head Dia. 5.424in O/A Length, 0.3122in Stem - 11612HB-8 Compare $716.57 $537.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Currently Out of stock. On order! Currently Out of stock. On order!
Sold Out Quick view Manley Performance Manley GM 6.6L Duramax Diesel Exhaust Valve Kit 1.300in Head Dia. 4.985in O/A Length, 0.2735in Stem - 11609-8 Compare $652.79 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Currently Out of stock. On order! Currently Out of stock. On order!
Sold Out Quick view Manley Performance Manley Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 5.015in O/A Length, 0.3415in Stem - 11599-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Currently Out of stock. On order! Currently Out of stock. On order!
Sold Out Quick view Manley Performance Manley Chevrolet Big Block Exhaust Valve Kit - 1.900in Head Dia. 6.450in O/A Length, 0.3415in Stem - 11597-8 Compare $652.80 $489.99 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... Currently Out of stock. On order! Currently Out of stock. On order!
Quick view Manley Performance Manley Big Block Chevrolet 1.880 Diameter Stock Length Extreme Duty Exhaust Valves - Set of 8 - 11587-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Cart Add to Cart
Quick view Manley Performance Manley Big Block Chevrolet 1.900 Diameter Stock Length Extreme Duty Exhaust Valves - Set of 8 - 11507-8 Compare $652.80 $489.99 Ideal for Specialized Applications: Tailored for any application where extreme force and heat resistance is a must including Top Fuel, Funny Car, and Marine Engine applications.XH-432 XtremeAlloy: The hallmark of excellence in exhaust valve material... Add to Cart Add to Cart
Sold Out Quick view Manley Performance Manley Chevrolet LS1intake Valve Kit - 2.080in Head Dia. 4.874in O/A Length, 0.3133in Stem - 11398H-8 Compare $716.57 $537.99 Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity... Currently Out of stock. On order! Currently Out of stock. On order!
