Editing Chrysler Slant-6 engine (section)

====Aluminum block 225====
Between late model year 1961 and early model year 1963, approximately 52,000 [[Die casting|die-cast]] aluminum RG blocks were produced and installed in passenger cars. These open-deck blocks used integrally cast high-nickel iron [[cylinder liner]]s, and bolt-in iron upper and lower main bearing caps. Internal components (crank, rods, pistons, etc.) were the same as used in the iron engine, and an iron [[cylinder head]] was used with a special copper-[[asbestos]] [[gasket]]. The aluminum block weighs about {{cvt|80|lb|kg|0}} less than the iron RG block.

Although serviceable examples can still be found, the aluminum RG tended to undergo delamination between the iron cylinder liner and the surrounding aluminum. Severe corrosion within the block is also commonly found because of the general tendency in the 1960s and 1970s to fill cooling systems in summer with plain water without [[corrosion inhibitor]]s. Moreover, the open-deck design and primitive head gasket technology are not sufficiently robust to withstand the increased seal demands of increased compression or forced induction.<ref>{{cite web |url= http://slantsix.org/articles/dutra-blocks/alm-block-sl6.htm |title=Aluminum Slant Six Engine Overview |last=Dutra |first=Doug |year=2001 |work=Slant Six Forum |access-date=10 December 2015}}</ref>