Feature●【Fitment】- Fits All 396 402 427 454 502 572 Engines●【Product Size】- Bolts Are 1/4" - 20 Thread Pitch | Bolts Measure 1 3/8 In Length | Studs Measure 1 1/4" In Length●【Package Include】-1 Set of 12 premium quality chromed steel hex head bolt kit●【High-Quality】-This Chrome Steel Hex Head Bolt Kit is Made of chrome steel, it has abrasion resistance and corrosion●【Direct Replacement】-Production in strict accordance with the size, direct replacement without modificationDescription