for the EH1 featured Mopar Performance W2 heads, although the production units had the standard 360 heads. Some police package cars came from the factory with a steel crank and h-beam rods. There was also a "lean burn" version of the 360. The LA360 was replaced in 1993 by the 5.9 Magnum, which shared some design parameters with the LA360, however the majority of its components were different. Due to additional modifications, the prototype Li'l Red Express truck tested by various period magazines ran appreciably stronger than actual production examples. Chrysler 300 Chrysler Valiant & Valiant Charger (Australia) Chrysler by Chrysler (Australia) 1975–1979 Chrysler Cordoba 1978–1979 Chrysler LeBaron 1977–1980 Chrysler New Yorker 1971–1980 Chrysler Newport 1976–1980 Dodge Aspen 1974 Dodge Challenger 1974–1978 Dodge Charger 1974–1976 Dodge Coronet 1974–1976 Dodge Dart 1978–1979 Dodge Diplomat 1978–1979 Dodge Magnum 1971–1978 Dodge Monaco 1971–1973 Dodge Polara 1971–1980 Dodge D Series 1981–1992 Dodge Ram 1979–1992 Dodge Ram Van/Dodge Ram Wagon 1971–1992 Dodge Sportsman/Dodge Tradesman 1974–1992 Dodge Ramcharger 1974-1981 Plymouth Trail Duster 1974-1975 Plymouth Road Runner 1974 Plymouth Barracuda 1974–1976 Plymouth Duster 1971–1978 Plymouth Fury 1975–1977, 1980 Plymouth Gran Fury 1974–1983 Plymouth Voyager 1979–1980 Dodge St. Regis 1976–1980 Plymouth Volare and Dodge B-series vans 1978–1979 Dodge Lil' Red Express (in Bristol-modified form) Bristol 603 Bristol 412 (in Bristol-modified form with turbocharger) Bristol Beaufighter Bristol Brigand Bristol Beaufort Interim solutions: the throttle body injected LA engines The last variation of the LA series to be introduced before the Magnum upgrade was the 1988-92 throttle-body fuel injection, roller cam engine. The first engines to receive these modifications were the V8 and V6 engines. A Holley/Chrysler-designed, single-point, twin-injector throttle body assembly that was mounted atop a slightly re-designed cast iron intake manifold. An in-tank electric pump and reservoir replaced the earlier mechanical (camshaft-eccentric driven) pump. The valvetrain was upgraded to include hydraulic roller lifters, however cam specs remained essentially unchanged. The resulting engine was somewhat improved as to power and efficiency. The 5.9 L V8 engines followed suit in 1989, but also received the overall improved "308" cylinder heads (casting number 4448308) that featured significantly higher flowing exhaust ports and a return to the original 1971 (non fast burn) combustion chamber. However, with other manufacturers already introducing the superior multi-point fuel injection system, Chrysler Corporation considered a more drastic upgrade program. As the TBI engines were being introduced, the new upgrade program was initiated in the Chrysler engineering department.