09/08/2026
https://www.facebook.com/share/18Ttheto65/?mibextid=wwXIfr
Every Mopar big-block on this page was born in the same building. The 413 Max Wedge that taught Chrysler how to drag race. The 426 Hemi that swept the 1964 Daytona 500. The 440 Six Pack that powered the Road Runner. The 383 that went into more Mopars than every other big-block combined. All of them came from the Chrysler Trenton Engine Plant in Trenton, Michigan. One building. One assembly line. Every RB and B-series big-block V8 that Chrysler produced for the American market passed through the same doors, was assembled by the same workforce, and left on the same trucks. The most important Mopar address nobody outside the factory ever learned.
This photograph commemorates the seven millionth engine. The engine on display is a 383, which is fitting because the 383 was the volume engine that paid for everything else. For every 426 Hemi that left Trenton, approximately 273 383s left beside it. The Hemi got the posters. The 383 got the production numbers. The 383 powered Plymouth Furys, Dodge Polaras, Chrysler 300s, Plymouth Satellites, Dodge Coronets, and hundreds of thousands of police cars and taxi cabs that needed V8 torque without Hemi complexity. The 383 made 330 HP in its hottest Street Wedge configuration and approximately 270 HP in its most common four-barrel form. It was never the fastest Mopar engine. It was the most common. And the most common engine is always the one that keeps the factory running.
The Trenton plant produced every displacement in the B and RB big-block families. The B-series: 350, 361, 383, and 400 cubic inches, all sharing the same 4.80-inch bore spacing and the same basic block architecture. The RB (Raised Block) series: 383, 413, 426, and 440 cubic inches, with a taller deck height for a longer stroke. The 426 Hemi used its own unique block but was assembled on the same line, by the same hands, in the same building. When Tom Hoover's engineering department finished the blueprints for the Race Hemi in late 1963, the production orders went to Trenton. When the Street Hemi was homologated for 1966, the 11,000 engines across six model years were assembled at Trenton. When the 440 Six Pack went into Road Runners and Super Bees, it came from Trenton.
Seven million engines from one plant is a manufacturing achievement that dwarfs the production numbers of the famous engines this page celebrates. The 426 Hemi: approximately 11,000 Street Hemis plus racing units. The 440 Six Pack: approximately 30,000. The 340 Six Barrel: approximately 5,100. Combined, the legendary Mopar performance engines total fewer than 50,000 units. The other 6,950,000 engines that left Trenton were 383s and 400s and 440 four-barrels that went into sedans, wagons, trucks, vans, police interceptors, and taxi cabs. The workhorse engines. The engines that paid for the Hemi development program. The engines that kept the assembly line running so that the Hemi could exist. Without three million 383s, there would be no 11,000 Hemis. Volume subsidizes performance. Always.
The Trenton plant eventually closed as Chrysler consolidated manufacturing and big-block production ended. The building that made every Mopar big-block, from the first 361 in 1958 to the last 440 in 1978, is no longer producing engines. But seven million of them are still out there. In running cars, in barns, in junkyards, in machine shops being rebuilt, and in the memories of every mechanic who ever turned a wrench on a B or RB engine. One building. Seven million engines. Every Mopar big-block that ever existed. The factory floor where the Hemi was born, where the Max Wedge was assembled, where the 440 was built, and where the 383 kept the lights on. The most productive engine plant in Mopar history, commemorated by the engine that nobody puts on a poster: the 383. The seven millionth engine wasn't a Hemi. It was the engine that made the Hemi possible.
