Crower 87037-16 Features:

Crower 87037-16 valve spring retainers for 7.3L Powerstroke engines; sold as a set of 16. Chromoly steel construction with machined, heat-treated strength and a black oxide finish for corrosion resistance. Fits single standard valve spring setups with 5/16 stock lock style and standard retainer style. Outer spring OD: 1.020 in.; inner spring ID: 0.645 in.; locks are not included.

Retainers Chromoly 5/16 1.020 In. Od, .645 In. Id, Features:

• Chromoly steel construction, machined and heat-treated for maximum strength and valve train durability in 7.3L Powerstroke applications
• Black oxide finish for added rust and corrosion resistance in demanding engine environments and long-term service conditions
• Standard-style, stock-lock design for 5/16 valve stems with single-spring compatibility and dependable valvetrain retention
• Fits 1.020 in. outer spring OD and 0.645 in. inner spring ID for precise valve spring retainer fitment and performance
• Set of 16 steel valve spring retainers, locks not included, engineered for 7.3L Powerstroke rebuild and performance use