What is included in the Edelbrock #8503 bolt kit?

This kit includes a complete set of cylinder head bolts and hardened, parallel-ground washers. These components are essential for securely mounting your cylinder heads to the engine block.

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 maintenance.

What is the tensile strength of these head bolts?

The head bolts in this kit are rated at 170,000 p.s.i. tensile strength, indicating they are well-built and capable of handling significant clamping forces.

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Specifications

Brand: Edelbrock
Part #: 8503
UPC: 85347085033

Edelbrock Bolt Kit Cylinder Head Buick

Name: Edelbrock Bolt Kit Cylinder Head Buick
Brand: Edelbrock
SKU: edelbrock-edelbrock-bolt-kit-cylinder-head-buick-t14-126991
Price: 214.49 USD
Availability: BackOrder

$214.49

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Edelbrock #8503 cylinder head bolt kit for Buick V8s. Includes bolts and washers for a solid head installation.

Key Features

Fits 1967-1974 Buick Centurion, Century, Electra, Estate Wagon, GS 400, GS 455, Gran Sport, LeSabre, Regal, Riviera, Skylark, Sportwagon, and Wildcat.
Includes a complete set of cylinder head bolts and hardened washers.
Bolts are cold-formed for molecular integrity and heat-treated.
Reduced diameter bolt heads allow for cylinder head re-torqueing without valve train removal.
Washers are hardened and parallel-ground for an even clamping surface.
Bolts are rated at 170,000 p.s.i. tensile strength.

⚠️ 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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Product Details

This Edelbrock #8503 bolt kit gives you everything you need to secure your cylinder heads: a complete set of head bolts and hardened washers. These bolts are cold-formed to ensure molecular integrity and then heat-treated before the threads are rolled and machined. This process helps create a strong, well-built bolt that can handle the demands of your engine. The bolts are rated at 170,000 p.s.i., giving you confidence in their strength.

A practical detail from Edelbrock is the reduced diameter bolt heads. This smart design means you won't have to remove your valve train to re-torque the cylinder heads later on, which can save you a lot of time and hassle during maintenance. The kit also includes hardened and parallel-ground washers, ensuring a solid, even clamping surface against the cylinder head. This kit is designed to fit a range of Buick V8 engines, including models like the Electra, Riviera, and Wildcat from the late 60s and early 70s.