[1] Its characteristic 30° inclined cylinder block gave it a lower height, copying the same cant Mercedes-Benz had introduced in 1952 in its M186-engined 300SL sports car.

This enabled Chrysler stylists to lower hood lines, and also made room for the water pump to be mounted with a lateral offset, significantly shortening the engine's overall length.

[citation needed] The Slant Six manifold configuration gives relatively even distribution of fuel mixture to all cylinders, and presents less flow restriction.

This, in turn, provides for relatively good airflow through the engine despite the intake and exhaust ports being on the same side of the head rather than in a crossflow arrangement.

[2] It was introduced in two displacements in 1960: The 170 cu in (2.8 L) "LG" (low-G, referring to the relatively short engine block casting and crankshaft stroke) in the compact Valiant, and the 225 cu in (3.7 L) "RG" (raised-G, referring to the relatively tall engine block casting and crankshaft stroke) in full-size Plymouth and Dodge Dart models.

The G-engine was offered in various configurations in the North American market until 1983 in cars, 1987 in trucks, and 1991 for marine, agricultural, and industrial use.

Starting in the early 1970s, primitive emission controls adversely affected driveability and power, though a version of the 2-barrel carburetor package first released for marine and export markets in 1967 was offered in North America from 1977 to 1983 under the "Super Six" name.

[6] In 1982, Chrysler signed an agreement with Perkins Engines to build a dieselized version of the 3.7, with seven main bearings and turbocharged as well as naturally aspirated (and also of the 2.2-liter inline-four) in Windsor, Ontario.

[9] Most G-engines were equipped with small-capacity carburetors (such as the ubiquitous Holley 1920) and exhaust systems adequate for standard passenger car usage at low altitudes, but which tended to hamper maximum available performance at high altitudes, in heavy or race-purpose vehicles and/or where quicker acceleration was desired.

The Hyper Pak consisted of a very-long-ram intake manifold meant to accept an AFB 4-barrel Carter Carburetor, the AFB carburetor itself and an appropriate air cleaner, dual (front-3 and rear-3) cast-iron exhaust headers, a large-diameter exhaust Y-pipe to connect to these dual cast-iron headers, a larger muffler, a 276°-duration camshaft with appropriate valve springs and pushrods, a heavier-duty clutch, a manual choke control, a starter motor modification template and, in the full-race version of the package, high-compression pistons designed to increase the engine's compression ratio to 10.5 from the stock 8.5.

The Hyper Pak was recommended for installation only on vehicles equipped with manual transmissions, for the camshaft was of such characteristics that a high idle speed was required to prevent engine stall-out.

Seven factory-backed Valiants entered the 1960 NASCAR compact car race at Daytona Beach, and humbled the competition.

A high-fidelity reproduction of the Hyper Pak intake manifold was created by Slant-6 builder Doug Dutra in the late 1990s.

Subsequently the tooling was sold to a marketer of performance equipment (Clifford Research, 6=8) for inline six-cylinder engines.

Also installed on these export 2-barrel engines was a slightly hotter camshaft (244° duration rather than 240°), and a distributor with modified advance curves.

Since 1972 Chrysler had not offered a 6 cylinder with sports aspiration but that would change with the release of the Dodge Polara RT, it was a hard top coupe equipped with the new high-performance Slant Six RG 225 or commonly known as Slant Six RT, thanks to the addition of a new Holley 2300 two-barrel carburetor, "3a1" exhaust manifolds, a more violent camshaft with 273° duration; and a compression ratio of 8.5:1 this version produced 174 bhp (176 PS; 130 kW) and torque of 245.6 lb⋅ft (333 N⋅m), this engine coupled to a 4-speed gearbox and a differential with a ratio of 3.07 to 1 launched the Dodge Polara RT to a maximum speed of 181 km/h or 113 mph and an acceleration of 0 to 63 mph in 11 seconds.

The carburetor, a Carter BBD similar but not identical to the one used on Chrysler's 318 cu in (5.2 L) V8 engine, used a standard Chrysler-style remote automatic choke.

This package, called "Super Six" by the marketing division, brought rated horsepower from 100 to 110 hp (101 to 112 PS; 75 to 82 kW) and torque from 170 to 180 lb⋅ft (230 to 244 N⋅m), while improving throttle response and driveability while maintaining compliance with emission laws.