A big-block engine, variants were produced in 305-, 351-, 401-, and 478-cubic-inch (5.0, 5.8, 6.6, and 7.8 liters respectively) displacements, with considerable parts commonality. During the …

10. In 1962 the 478 V6 was introduced for use in the 6500 series trucks. 12. M = Magnum series engines introduced in 1966. The biggest V6 Engine GMC every built is the 478 cid V6. This …

The V-6 engine has the model and Serial number stamped on the top of the block just forward of the right head. This number will help you know what size & series engine you have,

351E V6 which was available from 1966 to 1968 in 1/2 to 1 ton trucks is essentially a Magnum engine, as it has the big port heads & bigger manifolds. If you ever run into

The big-block V8 reaches peak power at 6,600 rpm, and revs to a recommended maximum of 7,000 rpm. Fuel is delivered through eight-port injectors, with the engine breathing through …

Jan 5, 2007 · I just stumbled upon a site dedicated to the big block series gmc v6 engines and was extremely suprised to hear the 305 cube engine was the SMALLEST of the v6's that gmc …

Dec 10, 2020 · With 5.0L of displacement and up to 165hp and 280 lb-ft of twist, the new V6 was more than adequate in an era when trucks were rarely used as daily drivers. Aluminum pistons …

Jan 11, 2021 · GMC added the Chevy straight 6’s as a credit option in the light duty line in ’64 and the Chevy Small Block V-8’s as an option halfway though the ’67 model year. The Chevy …

Oct 7, 2022 · GMC equipped their light duty and heavy duty trucks with a big block V6 engine of various displacements from 1959 to 1974. This truck is equipped with a 351 cubic inch V6 …

Jul 28, 2008 · Most of the outstanding "BIG" engine features are found in all of GMC's V-6 engines. This power. V-type design, does your job better with less operating and maintenance …