SpeedFactory Extreme Duty L19 Head Stud Kit for Honda/Acura B & K Series

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SpeedFactory Racing Extreme Duty L19 Head Stud Kit for Honda/Acura B & K Series (B18C1, B18C5, B20VTEC, LSVTEC, K20, K24)

This Kit was designed for hardcore drag racers running high boost levels that need more clamping force and tensile strength than the typical 8740 chromoly studs on the market. If you are looking for the best option, you've found it as these are 25% stronger than any other available off the shelf Head Stud Kit for your Honda/Acura!

These studs are manufactured specifically for us by ARP and utilize an L19 material that is much stronger than the typical 8740 chromoly and yields a tensile strength of 260,000 psi. They are also provisioned with a hex broach on the top of the stud for ease of installation and enabling you to install them with the cylinder head on the car if necessary.

What makes these head studs better than the competition?

Initially these might look just like other ARP and A1 Technologies head studs available on the market, but that isn't the case.

  • Superior L19 Alloy steel, much stronger than the typical 8740 chromoly.

  • Achieve higher clamp loads of 260,000 psi as opposed to the competitions 190,000-210,000 psi rating.

  • Hex broach on the top of the stud for ease of installation.

  • No Modification to your cylinder head or block is required as these are a direct drop-in replacement for the OEM head bolts.

  • Recommended for applications boosting higher than 30 PSI.

·Each kit includes a complete set of L19 head studs, nuts, washers, ARP Assembly Lubricant, and detailed instructions with torque specifications.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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