Editing GMC V6 engine (section)

===351===
The {{convert|351|CID|L|1|adj=on}} '''351''' had a {{cvt|4.56x3.58|in|mm|1}} bore and stroke.{{sfnp|Motor's|1973|pages=852-854}} The 351C produced {{convert|195|hp|0|abbr=on}} [[Horsepower#SAE gross power|gross]] at 3600 RPM and {{convert|314|lbft|0|abbr=on}} gross at 1600 RPM, while the 351M produced {{convert|254|hp|0|abbr=on}} gross at 3700 RPM and {{convert|442|lbft|0|abbr=on}} gross at 1400 RPM in 1969.{{sfnp|Motor's|1973|pages=852-854}} Introduced in 1960, the 351 was available as a C series, an E series (351E), and Magnum series (351M). The E and M series featured a larger two-barrel carburetor and an open port intake, bigger intake and exhaust ports, larger diameter valves, and larger exhaust manifolds. The 351E did not use the same parts as the 305E.{{clarify|Fragment?|date=January 2023}}  

The 351 or 351C were used in some 4000, 5000, and 6000 series trucks from 1962 to 1972 and the 351E was used in the 1000–3500 series trucks from 1966 to 1969.{{sfnp|Motor's|1973|pages=848-849}}<!--AGF E--> The 351, 351C, and 351M engines were medium duty truck engines, while the 351E was a light-duty engine – basically a 351M without the oil-driven governors. In 1973, the 351 was replaced by the 379-cubic-inch V6.{{sfnp|Motor's|1973|page=854}}<!--351 to 379-->