While the Chrysler Slant Six did not have the raw power of the Hemi, it was just a sophisticated. The Slant Six went into production in 1960 and lasted until 1983. The 30º tilt was borrowed from Mercedes-Benz and it offered several engineering advantages over straight up engines from the Ford, AMC and GM. The greatest advantage was intake manifold runner length. With a longer intake runner, it is possible to generate more low-end grunt. Also, more plenum volume gives better driveability. But the Slant Six was plagued with intake manifold cracking throughout its life. Revell made a 1:4 scale model of the Slant Six that was motorized with moving pistons, valves and belts.