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ARP HAP4500-5 Cylinder Head Fasteners Chromoly Bolt Kit

Manufacturer

Picture for manufacturer ARP

Part Number

HAP4500-5
13 reviews
Sale Price

$5.06

3 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP HAP4500-5 Cylinder Head Fasteners are precision-engineered high-performance bolts designed to provide superior clamping force and reliability in demanding engine applications. These fasteners are manufactured from premium-grade 8740 chromoly steel and feature ARP's proven heat-treatment process for maximum strength and durability.

Key Features:

  • 8740 chromoly steel construction for superior strength
  • Rated at 180,000 psi tensile strength—approximately 15% stronger than Grade 8 fasteners
  • Black oxide finish for corrosion resistance
  • Precision thread rolling after heat treatment ensures proper grain flow
  • Cold-forged to maintain molecular integrity throughout the fastener
  • Meets ARP's exacting quality control standards

ARP fasteners are trusted by professional engine builders in NASCAR, NHRA, Formula 1, and other top-level motorsports competitions. Each fastener undergoes rigorous manufacturing processes to deliver the strength and consistency required for high-performance and racing applications. Whether you're building a street performance engine or a competition powerplant, ARP cylinder head fasteners provide the reliability and peace of mind you need.

Products specifications

Cut to Fit

No

Fastener Finish

Polished

Fastener Material

Stainless steel

Fastener Style

Bolt

Head Style

Hex

Quantity

Sold individually.

Thread Size

7/16-14 in.

Underhead Length (in)

4.500 in.

Washers Included

Yes

Will shop here again

Everything was as advertised.

Overall gods experience

great service with no issures

Straight forward and easy.

Extremely Happy! Best price on the web, easy order tracking, if only all online orders from other sources were this easy. I ordered a component from another online retailer who showed parts "in stock" only to see my status as "sent to warehouse" and it was weeks. When Autoplicity shows "in stock" it really was and delivered right away.

It was very easy to find and buy this item because I have an amazon account. Thanks

I am so pleased! Autoplicity had the best price by far for the item I ordered. I was not familiar with them so having the Paypal option was perfect. Over all I saved $30 on an item that was close to $100. Shipping was VERY reasonable and quick. I ordered my item on Saturday. They shipped it right away and I received it on Wednesday. I am definitely an Autoplicity fan and will recommend them to my friends not to mention our mechanic. He found the item I wanted on sale through another major company. Just to double check, I searched online and Autoplicity blew that company out of the water with their pricing and service for the exact same item. Very nice!

Awesome product And fast fishing

I ordered a WeatherTech cargo liner from Autoplicity after finding the product almost $40 cheaper than anywhere else. Usually I'm suspect of the one company with a very low price but the high number of reviews gave me enough comfort to order. The product came in a large box and was shipped for a very reasonable price and arrived in four business days. The product is as described and I couldn't be happier. I will definately keep them in mind for future orders.

Excellent prices and quick shipping. Will definitely use again.

Fantastic prices and fast shipping!! Looks like I'm done with Jeg's and Summit!!

I am very pleased with my purchase from Autoplicity. Price was very reasonable and shipping was great!

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