Editing Pontiac V8 engine (section)

===287===
The V8 engine was introduced for the 1955 model year as the "Strato Streak". Not long before the model year introduction, Pontiac management decided that the entire line would be V8-powered. This was based on results of over 1 million test miles, which was unheard of at the time. The 287 was an "oversquare" engine with a [[bore (engine)|bore]] and [[stroke (engine)|stroke]] of {{cvt|3+3/4|×|3+1/4|in|mm|1}}, for a total displacement of {{cvt|287.2|cuin|L|1}} and a main bearing diameter of 2.5 inches. [[Compression ratio]] was a modest 8.00:1, with valve diameters of {{cvt|1.781|in|mm}} (intake) and {{cvt|1+1/2|in|mm}} (exhaust). It was rated {{cvt|180|hp|0}} at 4600&nbsp;rpm and {{cvt|264|lbft|0}} at 2400&nbsp;rpm with a two-barrel [[carburetor]], {{cvt|200|hp|0}} at 4600&nbsp;rpm and {{cvt|278|lbft|0}} at 2800&nbsp;rpm with the four-barrel carburetor.