Edelbrock 85912 Cylinder Head Bolt Kit for Chrysler Big Block

Edelbrock #85912 is a Head Bolt Kit for Big-Block Chrysler Engines with Edelbrock (#60825, 60829, #60929, #60185, #60189, #5090, #5093 E-Street and Performer RPM Cylinder Heads. This kit contains a complete set of Head Bolts & Washers.

Edelbrock E-Series Cylinder Head Bolt Kit #85912 is specially designed for use with Chrysler big-block engines equipped with E-Street/Performer RPM cylinder heads (#60825, 60829, #60929, #60185, #60189, #5090 and #5093). This kit contains all necessary bolts and washers 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.

Installation Notes

The Edelbrock #8591 is made specifically for big block Chrysler; Installation is the same as for original equipment cylinder heads. Consult service manual for specific procedures, if necessary.; Be sure that the surface of the block and the surface of the head are thoroughly cleaned to remove any oily film before installation.; Use alcohol or lacquer thinner on a lint-free rag to clean. Apply oil or suitable thread lubricant to head bolt threads and the underside of bolt heads and washers.; Torque to 70 ft./lbs. in three steps (40, 55, 70) following the factory tightening sequence.; Apply a continuous 1/8" bead of automotive RTV silicone sealer to end sealing surfaces on block and along bottom of intake ports on cylinder head. Also, apply a thin bead of sealer around intake ports on cylinder head and gasket.; Position intake gasket thin valley cover in place and tighten bolts down. Then, place intake manifold in position and torque manifold bolts to 25 ft. lbs.; Rocker shaft hold-down studs, nuts and washers, for 2 places marked (S) in each head, are supplied in this kit.; Double nut both studs and screw them in until they reach the bottom. Install rocker shaft, factory concave washer and hard washer supplied with this kit.; Apply 30W oil to fine threads and under nuts and washers and torque nuts to 25 ft./lbs. A head bolt re-torque is recommended after initial start-up and cool-down (allow 2-3 hours for adequate cooling).