4140 Chromemoly Steel - Superior to OE 1020 Steel, the 4140 Chromemoly Steel used in Lunati retainers is substantially stronger and harder than factory.
High Durability - Lunati Chromemoly Steel Retainers are all black oxide coated to ensure corrosion resistance in high load performance and racing applications.
Fit 1.437"-1.500" Dual Valve Springs with 10 Degree Lock Angle
Made in USA
Available for 3/8" and 11/32" valve stem diameters
All Steel retainers are Black oxide coated for corrosion resistance
Product type: chromyl Steel valve spring retainers
Description
Lunati Steel Retainers are made from 4140 chrome moly steel, which is stronger and harder than standard 1020 steel. This increased strength to weight ratio results in a stronger yet lighter retainer. Steel retainers are available for 5/16", 3/8", 11/32" and valve stem diameters as well as 7° and 10° locks. All steel retainers from Lunati are black oxide coated for corrosion resistance.