Small Block Chevy Header Bolts Stainless Steel Kit 16 Pcs for 283 327 350 383 400 TPI EnginesFeatures1Premium-Quality Material: Be made of stainless steel, ensuring durability and resistance to corrosion.2Perfect Fitment:?Replacement for CHEVY 283 327 350 383 400 TPI.3Complete Kit: The kit includes 12* 3/8" x 1" Allen Socket Head Bolts and 12pcs 3/8" Mil-Spec AN Washers, providing all the necessary components for installation.4Corrosion Resistance: Stainless steel is known for its excellent resistance to corrosion, making these header bolts ideal for withstanding harsh environmental conditions and preventing rust formation.5Enhanced Performance: The use of stainless steel header bolts can improve the overall performance of your engine. They provide a secure and tight seal, preventing any exhaust leaks and maximizing the engineu0027s power output.SpecificationFeatures:Premium-Quality Material: Be made of stainless steel, ensuring durability and resistance to corrosion.Perfect Fitment:?Replacement for CHEVY 283 327 350 383 400 TPI.Complete Kit: The kit includes 12* 3/8" x 1" Allen Socket Head Bolts and 12pcs 3/8" Mil-Spec AN Washers, providing all the necessary components for installation.Corrosion Resistance: Stainless steel is known for its excellent resistance to corrosion, making these header bolts ideal for withstanding harsh environmental conditions and preventing rust formation.Enhanced Performance: The use of stainless steel header bolts can improve the overall performance of your engine. They provide a secure and tight seal, preventing any exhaust leaks and maximizing the engine's power output.Specifications:Item:?SBC HEADER BOLTS STAINLESS STEEL KITMaterial: Stainless SteelPackage Size: 10*10*2cmPackage Weight: 238gPlastic PackagePackage List:12* 3/8" x 1" Allen Socket Head Bolts12* 3/8" Mil-Spec AN WashersPackage List12* 3/8" x 1" Allen Socket Head Bolts12* 3/8" Mil-Spec AN Washers