Edelbrock Bolt Kit Cylinder Head Buick

SKU: EDE8503

Cylinder Head Fasteners

EDE Head Bolt Kit...

Edelbrock

Edelbrock Bolt Kit Cylinder Head Buick

SKU: EDE8503

Cylinder Head Fasteners

EDE Head Bolt Kit...

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

The Edelbrock #8503 bolt kit contain a complete set of the highest quality head bolts and hardened washers available. Cold-formed to ensure molecular integrity and heat treated prior to thread rolling and machining. Reduced diameter bolt heads eliminate the need for valve train removal to facilitate cylinder head re-torqueing. Hardened and parallel-ground washers are included. Rated at 170,000 p.s.i.

Product Overview

Features and Benefits

Manufactured By ARP

Product Details

Description:	Cylinder Head Bolt Kit
Engine Make/Size:	Buick 400-455
Finish:	Black Oxide
Grade Type:	Performance
Head Drive Type:	Hex
Length:	(4) 2.25 in, (4) 4.00 in, (12) 4.25
Material:	Chromoly
Minimum Length:	2.25
Part Number:	ede8503
Quantity:	Kit
RGL:	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 www.P65warnings.ca.gov.
Thread Diameter:	0.50
Thread Type:	Coarse
WARNING CA Proposition 65 Message:	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 www.P65warnings.ca.gov.
WARNING CA Proposition 65:	Yes
Washers Included:	Yes

Application Summary

Buick:Big-Block:400 (6.6L)/430 (7.0L)/455 (7.5L)

Part Type

Engine Cylinder Head Bolt Set

Data: v4.2 - Upd: 2026-10-13 23:13:04

Features

Manufactured By ARP

Specifications

Product Attributes - Brand: Edelbrock
Product Attributes - Manufacturer's Part Number: 8503
Product Attributes - Part Type: Cylinder Head Fasteners
Product Attributes - Product Line: Edelbrock Head Bolt Kits
Product Attributes - UPC: 085347085033
Product Attributes - Fastener Style: Bolt
Product Attributes - Undercut Stud: No
Product Attributes - Head Style: Hex
Product Attributes - Fastener Material: Chromoly
Product Attributes - Fastener Color: Black
Product Attributes - Washers Included: Yes
Product Attributes - Washer Style: Flat
Product Attributes - Quantity: Sold as a kit.

Reference Information

Brand Name/s	Edelbrock
StreetFX SKU	ede8503
SFX Item ID	4236405
Supplier Item Code	4236405
Manufacturer SKU	8503
Manufacturer UPC	85347085033
Alternative References	v8;, EDL-8503