Quick view Manley Performance Manley Chevrolet Big Block 4340 Non-Twist Forgings 4.250in Stroke Crankshaft - 190140 Compare $1,212.29 $1,115.99 Our "Pro Series" 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications. Add to Cart Add to Cart
Quick view Manley Performance Manley Chevrolet Big Block 454 Non-Twist Forgings 4.250in Stroke Crankshaft - 190290 Compare $1,286.77 $1,183.99 Our "Pro Series" 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications. Add to Cart Add to Cart
Quick view Manley Performance Manley Chevrolet Big Block 565 cid 4.600in Bore 4.250in Stroke +43cc Dome 14.0 CR Rotating Assembly - 39565 Compare $3,650.35 $3,467.99 Manley Rotating Assemblies are engineered as complete, matched systems to deliver maximum strength, balance, and performance in high-demand engines. Featuring precision-forged crankshafts,... Add to Cart Add to Cart
Sold Out Quick view Manley Performance Manley Chevrolet Big Block Exhaust Valve Kit - 1.600in Head Dia. 4.921in O/A Length, 0.3415in Stem - 11551-8 Compare $401.42 $301.99 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... 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 - 1.600in Head Dia. 5.221in O/A Length, 0.3415in Stem - 11785-8 Compare $401.42 $301.99 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... 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 - 1.625in Head Dia. 4.921in O/A Length, 0.3415in Stem - 11557-8 Compare $401.42 $301.99 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... Currently Out of stock. On order! Currently Out of stock. On order!
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Sold Out Quick view Manley Performance Manley Chevrolet Big Block Exhaust Valve Kit - 1.725in Head Dia. 5.374in O/A Length, 0.3715in Stem - 11835-8 Compare $405.99 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... 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 - 1.725in Head Dia. 5.464in O/A Length, 0.3715in Stem - 11519-8 Compare $401.42 $301.99 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... 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 - 1.800in Head Dia. 5.930in O/A Length, 0.3415in Stem - 12341-8 Compare $251.58 $188.99 Manley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM. 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 - 1.800in Head Dia. 5.930in O/A Length, 0.3415in Stem - 12343-8 Compare $401.42 $301.99 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... 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 - 1.800in Head Dia. 5.930in O/A Length, 0.3415in Stem - 12351-8 Compare $685.44 $514.99 Discover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy... Currently Out of stock. On order! Currently Out of stock. On order!
