The 440 engine was introduced in 1966, and the high performance version was introduced in the 1967 GTX and R/T models. It was also introduced into the 1966 Chrysler Imperial. In 1968 the 383 Road Runner and Super Bee models were introduced, starting the biggest performance surge since the early 1960s. In 1969, the first 440-6 barrel engine package was produced with special rods, crankshaft, timing chain, camshaft, valve springs and intake system. This package was continued in 1970 and 1971.

In 1971, the 440-6 barrel and the Hemi were the last truly high performance cars produced. One of the greatest moments in the 'B' engine's history was its return to Grand National racing. On July 4, 1971, four cars with 426 cubic inch versions of the 440 with ported 440 heads were entered in the Daytona Grand National race, and they finished 1-2-3-4. Performance and reliability have always been trademarks of the 'B' engine family.

Here's a picture of the 440

This info was taken off of Mopar Engines It's a kewl site, you should check it out!

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