Edelbrock E-Series Cylinder Head Bolt Kit #85922 is compatible with Chrysler big-block engines equipped with #77929 and #77949 Victor cylinder heads. This kit contains 10 bolts that are longer than stock and replaces the bolts in the center of each head. This allows the intake ports to gain the height needed to accommodate longer valves. All necessary bolts and washers are included to install one set of heads. E-Series bolts have a yield tensile strength of 190,000 PSI for strong and reliable loading with generous filleting throughout to eliminate stress risers. Bolt threads are rolled after heat-treating for superior form and strength, while a small hex head provides extra space for socket clearance in tight situations. E-Series Cylinder Head Bolts have a durable black oxide finish with sealer and come with the distinctive Edelbrock "E" stamped into the head.