Edelbrock E-Series Cylinder Head Bolt Kit #85502 for Chevy small-block engines

Add to Wish List
Edelbrock E-Series Cylinder Head Bolt Kit #85502 is a high-quality replacement set of bolts with washers for small-block Chevy engines equipped with Edelbrock Performer RPM aluminum heads.
Out of stock
Fast Shipping Fast Shipping
Tech support Tech Support
Easy returns Easy Returns
High-quality High-Quality
Fast Shipping
Fast shipping
We pride ourselves in ensuring all products are shipped as quickly as possible.
Shipping policy
Tech support
Easy returns
We offer a quick and painless return process on all new and unused products when purchased direct.
Return policy
Easy returns
Tech support
Our Tech Support Agents are second to none. We can answer any of your tech inquiries!
Tech support
High quality
Our core products are made in the USA offering unsurpassed quality and performance.
About Us


Edelbrock E-Series Cylinder Head Bolt Kit #85502 is a high-quality replacement set of bolts with washers for small-block Chevy engines equipped with Edelbrock Performer RPM aluminum heads. This bolt kit is required when installing Edelbrock aluminum heads on an engine previously equipped with cast iron heads. Bolts used with iron heads do not require the use of washers. Washers are required with aluminum heads and the bolts in this E-Series kit are longer to compensate for the thickness of the hardened washer. 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.

Features and Benefits

  • For Chevy small-block with aluminum heads; Yield tensile strength of 190,000 PSI; Heat treating with rolled threads for superior form and strength; black-oxide finish with sealer; Edelbrock “E” logo stamped on bolt head.



Manufacturer Edelbrock
Application Application Specific
UPC 00085347855025
Quantity Kit
Thread Type Coarse
Thread Diameter 0.4375 in
Availability Note Available to Order
Warranty 12 Months
Hazardous Materials Warning WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit
Installation Notes
  • The Edelbrock #85502 is made specifically for small block Chevy V8.; Installation is the same as for original equipment cylinder heads. Consult service manual for specific procedures, if necessary.; Use Edelbrock head gasket #7310. #7310 has a flattened steel O-ring around each bore and will provide an excellent, long lasting seal. However, it will compress the aluminum and you must use #7310 for subsequent gasket changes to get a good seal.; Be sure that the surface of the block and the surface of the head is thoroughly cleaned to remove any oily film before installation.; Use alcohol or lacquer thinner on a lint-free rag to clean. Apply RTV silicone or ARP thread sealer to head bolt threads, and apply engine oil or ARP lubricant to the head bolt washers and underside of bolt heads.; Torque bolts to 65 ft./lbs. in three steps (40-55-65), following the factory tightening sequence (See Figure 3). Check to make sure engine has proper grounds to chassis. When pouring coolant back in the radiator make sure to use at least a 50/50 mixture of coolant to water. A re-torque is recommended after initial start-up and cool-down (allow 2-3 hours for adequate cooling).
Finish Black Oxide
Length (16) 1.750 in, (14) 3.750 in, (4) 3.060 in
Material Chromoly