Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

NHTSA probing coolant leak in Porsche 911?

In another embarrassing failure to understand what they're supposed to be regulating, the NHTSA has announced that they are investigating a “coolant leak” in Porsche 911s that were built with the GT1 engine block between 2001 and 2007. Maybe when they said coolant, they were talking about the oil that circulates in a 911 to keep the engine cool? Next thing you know, they'll be checking out fuel pumps on the Tesla Model S!

2014 GMC Sierra Denali gets more bling, luxury, tech

The 2014 Chevy Silverado and GMC Sierra pickup trucks -- revealed at the Detroit auto show -- will be two of the GM's biggest sellers this spring. Now we know a little more about the luxury GMC Sierra Denali trim, which about 20 percent of buyers opt for. The new Sierra Denali will come with a standard 355-hp 5.3-liter V8 or available 420-hp, 6.2-liter V8.

Porsche Boxster & Cayman to get 4-Cylinder Turbo: Official

The next Porsche Cayman (new Cayman GTS pictured) will get a 4-Cylinder turbo We already know that the new Porsche Macan will be getting 4-Cylinder VW engines later this year as Porsche looks for a lower entry-level point for the Macan, but it’s not just the Macan going the 4-Cylinder route. Porsche boss, Matthias Mueller, has confirmed to Germany’s Auto Motor und Sport Magazine that Porsche are preparing new 4-cylinder turbo engines for the Cayman and Boxster – but not engines from VW. Instead, Porsche will be lopping two cylinders off the Boxer engine to create a new 4-Cylinder Boxer engine with power outputs up to 395bhp.