Valve Cover Adapter 55-86 Perimeter to 87-02 Center Bolt Head 350 327 551542

Valve Cover Adapter 55-86 Perimeter to 87-02 Center Bolt Head

This valve cover adapter 55-86 perimeter to 87-02 center bolt head, cross-referencing part number 551542, allows perimeter-bolt valve covers to mount on center-bolt cylinder heads.

Overview

This valve cover adapter 55-86 perimeter to 87-02 center bolt head bridges the gap between different generations of engine cylinder heads. The valve cover adapter 55-86 perimeter to 87-02 center bolt head lets you run vintage-style perimeter valve covers on modern center-bolt setups. Engine builders use this valve cover adapter 55-86 perimeter to 87-02 center bolt head to achieve a classic look without changing their modern engine blocks.

Built For Performance

• CNC-machined aluminum construction ensures precise mating surfaces.
• Leak-resistant design maintains a tight seal between the adapter and the head.
• Thick mounting flange resists warping under high fastening torque.
• Included hardware simplifies the installation process on your cylinder heads.

Fits These Machines

• for Chevy 327
• for Chevy 350

On-The-Job Use

• Adapting vintage perimeter-bolt valve covers to a modern 350 crate engine.
• Customizing an engine bay for a classic retro appearance.
• Preventing oil leaks on custom cylinder head configurations.

Specs At A Glance

Good To Know

Q: Does this kit require two sets of gaskets for installation? A: Yes, you will need one set of gaskets to seal the adapter to the cylinder head, and a second set to seal the valve cover to the adapter.

Q: Will this adapter raise the overall height of my valve covers? A: Yes, these adapters add about a half-inch of clearance, which can also help clear aftermarket roller rocker arms.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.