Earl’s Releases Line Of Cylinder Head Bolts

New from Earl’s – their line of popular Cylinder Head Bolts. These bolts are 15% stronger than Grade 8 bolts and made from 170,000-PSI chromoly steel. See more details below.

Official Release:

Earl’s Cylinder Head Bolts are about 15 percent stronger than the strongest Grade 8 bolts and available for a huge array of popular applications. Manufactured from 170,000-PSI chromoly steel, they feature a reduced wrench size (12-point or hex-head) for extra socket clearance around the rocker arms when you re-torque the heads. The wide-flange head distributes the load evenly and provides additional support for the extra-thick chromoly washers. Available in a black-oxide finish and sold in complete sets, these made-in-the-USA fasteners are reusable, eliminating the hassle and expense of replacing OEM-style torque-to-yield bolts each time you remove the heads.


  • 15 percent stronger than the strongest Grade 8 bolts
  • Manufactured from 170,000-PSI chromoly steel
  • Available for a huge array of popular applications

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Chris McWilliams

Chris McWilliams grew up watching his dad race go-karts around his Southern Indiana home and started racing junior dragsters when he was 10 years old. Chris drove a UMP Mini Stock for two seasons until he totaled his racecar in an accident at Western Kentucky Speedway. He is currently a college student at Oakland City University working on a degree to pay the bills for his dirt racing addiction.
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