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** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** When it comes to firearm ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

What makes the most power may not always be the most efficient. With regards to bore and stroke, an engine is called "oversquare" if the bore is longer than the stroke, "square" if the bore and stroke ...

Horizontal directional drilling (HDD) is challenging and difficult work fraught with unknown obstacles. While it's not possible to eliminate every obstacle, bore planning software tools developed by ...

Everybody knows that the right way to build an engine is to use precision measuring tools to establish the proper internal engine clearances. The problem used to be that these tools were expensive ...

The California Highway Patrol has shut down Bore #2 of the Caldecott Tunnel due to a crash and car fire.