Editing Ford small block engine (section)

====Boss 302====
[[File:Boss302Engine.jpg|thumb|[[Ford Boss 302 engine|Boss 302 engine]]]]
{{main|Ford Boss 302 engine}}

Officially called the "302&nbsp;H.O.", the Boss 302 was a performance variant of the small block designed to help Ford wrest back the 5-liter Trans-Am racing championship from the [[Camaro Z28|Camaro Z/28]]. Conceived of by chief engineer Bill Gay and realized by Bill Barr, it put large-port, large-valve, quench-chambered, free-flowing cylinder heads adapted from the design destined for the 351 Cleveland, which debuted in 1969,<ref>{{cite web |last1=Holdener |first1=Richard |title=Ford Boss 302 Engine Build - Build A Better Boss - Tech |url=https://www.motortrend.com/how-to/mdmp-1011-ford-boss-302-engine-build/ |website=MotorTrend |access-date=13 February 2023}}</ref> on a special racing block, bringing rated power to {{cvt|290|hp|kW|0}}. According to some reports, the canted-valve, deep-breathing, high-revving engine could produce more than {{cvt|310|hp|kW|0}}, although it was equipped with an electrical revolution limiter that restricted maximum engine speed to 6,150&nbsp;rpm. The 302&nbsp;H.O. borrowed both components and ideas from the 289 HiPo. A strong 4-bolt main bottom end, thicker cylinder walls, steel screw-in [[core plug]]s, aggressive forged-steel crank, special HD connecting rods, and Cleveland-style forged pistons were geared to racing. The [[Boss 302 Mustang]] was offered only for the 1969 and 1970 model years. In the January 2010 issue of ''Hot Rod'' magazine, a Boss 302 engine built to the exact specifications, settings, and conditions of the original engine was tested. It produced {{cvt|372|hp|kW|0}} at 6,800&nbsp;rpm (650&nbsp;rpm over the original engine's redline) and {{cvt|325|lbft|Nm|0}} of torque at 4,200&nbsp;rpm.<ref name="hrm-shootout">{{cite web |author=<!-- not stated --> |date=2009-11-30 |title=Muscle Car Engine Shootout - Chevy Vs. Ford Showdown |url=https://www.hotrod.com/how-to/hrdp-1001-muscle-car-engine-shootout |website=hotrod.com |location= |publisher= |access-date=}}</ref>