Edelbrock Cylinder Head Bolt Kit For BB Chevy 77409/77459 Heads 8554

Edelbrock Cylinder Head Bolt Kit 

Edelbrock Part Number #8554

Fits: Big Block Chevy Edelbrock Cylinder Head Part Numbers 77409 & 77459
(Will Not Fit Stock Heads)

Specifications:
  Bolt/Stud Kit      Bolt
Head/Nut Style      Hex
Washers Included      Yes
Material      Chromoly
Color      Black
Finish      Oxide
Quantity      Kit

8740 Chrome Moly: Until the development of today’s modern alloys, chrome moly was popularly considered a high strength material. Now viewed as only moderate strength, 8740 chrome moly is seen as a good tough steel, with adequate fatigue properties for most racing applications, but only if the threads are rolled after heat-treatment, as is the standard Edelbrock production practice. Typically, chrome moly is classified as a quench and temper steel, that can be heat-treated to deliver tensile strengths between 180,000 and 210,000 psi.