What engines does this head bolt kit fit?

This Edelbrock head bolt kit is designed for Oldsmobile 400, 425, and 455 cubic inch engines. It is compatible with cylinder heads bearing part numbers 60529, 60515, and 60519.

Why are the bolt heads a reduced diameter?

The reduced diameter bolt heads are a practical design feature. They allow you to re-torque the cylinder heads without needing to remove the valve train components, simplifying future maintenance.

What is included in this kit?

The kit contains a complete set of the highest quality head bolts and hardened washers required for a pair of cylinder heads on your specified Oldsmobile engine.

Specifications

Brand: Edelbrock
Part #: 8558
UPC: 85347085583

Edelbrock Olds Head Bolt Kit

Name: Edelbrock Olds Head Bolt Kit
Brand: Edelbrock
Price: 201.88 USD
Availability: InStock

$201.88

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Fits 1965-1979 Oldsmobile 400-455 engines. This Edelbrock head bolt kit includes hardened washers and features reduced diameter bolt heads for easier re-torquing.

Key Features

Fits 1965-1979 Oldsmobile 400, 425, and 455 cubic inch engines.
Includes a complete set of head bolts and hardened washers for a pair of cylinder heads.
Bolts are cold-formed for molecular integrity and heat-treated prior to thread rolling and machining.
Rated at 170,000 psi for strong clamping force.
Reduced diameter bolt heads allow for cylinder head re-torquing without valve train removal.
Hardened and parallel-ground washers are included for a proper sealing surface.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're working on a 1965-1979 Oldsmobile with a 400, 425, or 455 engine, this Edelbrock head bolt kit is what you need to secure your cylinder heads. It's designed to fit a range of Oldsmobile models, including the Cutlass, Delta 88, and Toronado, ensuring you have the right hardware for your rebuild or repair.

These bolts are cold-formed to maintain molecular integrity and are heat-treated before thread rolling and machining, giving them a strong 170,000 psi rating. A practical detail is the reduced diameter bolt heads; this design change means you won't have to remove the valve train when it's time to re-torque the cylinder heads, saving you a good bit of time and effort during maintenance. Hardened and parallel-ground washers are included to ensure a solid, even clamping surface.

This kit comes with all the necessary head bolts and washers for a pair of heads, making it a complete solution for your engine project.